I N S T R U C T I O N D A T A

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1 I N S T R U C T I O N D A T A Transfer Trip Module For RFL IMUX 2 Intelligent T1/E1 Multiplexers (Includes MTS IRIG-B Synchronization Upgrade) DESCRIPTION The Transfer Trip Module is a bi-directional module designed for use in RFL IMUX 2 multiplexers. This device is also referred to as the MTS module (Modular Teleprotection System). It transmits and receives data via the T1/E1 serial link and generates and receives trip commands via an I/O adapter module. The can support up to four bi-directional transfer trip functions between two IMUX 2 terminals, or can support DCB (Directional Comparison Blocking) in addition to two transfer trip functions. These terminals can operate point to point between two IMUX 2 terminal nodes in a network. These terminal nodes can be configured as point-to-point or drop and insert terminals and can be installed at different locations in the network either at adjacent or nonadjacent nodes. The module has eight LEDs on the front to indicate the condition of the trip inputs and outputs. NOTE The module can also be used in RFL 91 T1/E1 multiplexers, however, in this application the DS-TT module can only be programmed using the RS-232 port. The RS-232 port is labeled J1 and is located near the front of the DS-TT module as shown in Figure 1. When using the DS-TT module in IMUX 2 T1/E1 multiplexers, the user must know the CM3B software version. If the CM3B software version is dated or later, then the DS-TT module can be programmed using either the Network Management Software as described in Section 7 of the IMUX 2 Instruction Manual, or SCL commands via the CM3B RS-232 port. See the Remote Control Interface section of this instruction data sheet. If the CM3B software version is dated before , then the DS-TT module can only be programmed using the RS-232 port of the DS-TT module using SCL commands. The RS-232 port is labeled J1 and is located near the front of the DS-TT module as shown in Figure 1. To determine the CM3B software version in your system, remove the CM3B module from the multiplexer chassis and read the date of the software label on device U3. The date on this label is the CM3B software version. The software label will be similar to the one shown below. The works with all versions of CM3C, CM3R, CM4 or CM6 software. U3 2/13/96 SW2C3V1 (C) 96 RFL January 31, 28 1 (973)

2 FEATURES TRIP HOLD This is a timer function which extends the length of time that a trip output is activated after a valid trip condition occurs. For this function to engage, a valid trip condition must exist long enough to satisfy the pre-trip timer. The length of time is programmable independently for each function. INPUT DE-BOUNCE This is a timer function which requires that a trip input be present for a certain length of time before a trip command is transmitted. The length of time is not programmable by the user, but is set at the factory to 1μs. ALARM TIMER This is a timer function which requires that an alarm condition exists for a certain length of time before an alarm output is generated. The length of time is programmable by the user. PRE-TRIP TIMER This is a security timer function set on the Rx Card. It requires that a trip be present for a certain length of time before an output is generated. The length of time is programmable independently for each function. Note that the setting in NMS (Network Management Software) has a propagation delay or offset of 2 ms built in. The NMS pre-trip timer setting takes into account an approximate 2 ms of processing delay within the module and mux. For example: To cause the Pre-Trip Timer to require 3 continuous milliseconds of Receive Trip Commands before the trip command is accepted, use an NMS pre-trip timer value of 5 ms. COMMUNICATION CHARACTERISTICS This module communicates using a single bi-directional DS. The communication includes programmable addressing to prevent misconnections. One of 32 addresses are selectable. PROGRAMMABLE LOGIC Trip hold Output Form Alarm timer (delay) Pre-trip timer Unblocking Sequence of events log Operational modes ms (1 ms increments) normal/invert Sec. (1 ms increments) 3-16 ms (1 ms increments) Enable/Disable 2 records Transfer Trip/DCB PING PONG This module is capable of measuring and recording round trip delay. The measurement is run continuously and an alarm is generated if the round trip delay exceeds a user preset value. The frequency of the Ping Pong test is selectable by the user. The resolution of the test is 1 millisecond and the accuracy is 1 millisecond each way. January 31, 28 2 (973)

3 SPECIFICATIONS As of the date this Instruction Data Sheet was published, the following specifications apply to the RFL DS-TT module. Because all RFL products undergo constant refinement and improvement, these specifications are subject to change without notice. ENVIRONMENTAL ANSI C Operating temperature Storage temperature Humidity (service conditions) - 2 o C to + 55 o C - 4 o C to + 75 o C 4 o C non-condensing SWC/ FAST TRANSIENT ANSI C ANSI C (dielectric) (SWC & fast transient) RFI SUSCEPTIBILITY ANSI C V/M OPTICAL INPUT SPECIFICATIONS Operating voltage range: 48 Vdc 38-6 Vdc 125 Vdc Vdc 25 Vdc 2-28 Vdc Input threshold 1/2 nominal station battery SOLID STATE OUTPUT SPECIFICATIONS Maximum continuous output current Maximum surge current (1 ms) Minimum output current Maximum open circuit voltage 1 Amp 1 Amps 2 ma 28 Vdc OPTIONAL RELAY OUTPUTS Maximum continuous current Maximum surge current (1 ms) Maximum breaking current Maximum open circuit voltage Maximum operate time 2 A (inductive) 3 A 1 A resistive 28 Vdc 5 ms January 31, 28 3 (973)

4 ALARM RELAY SPECIFICATIONS Maximum continuous current Maximum breaking current Maximum open circuit voltage Maximum operate time 1 A (inductive) 1 A (resistive) 28 Vdc 1 ms SYSTEM PERFORMANCE Operate time (back to back) 3 ms (solid state) Dependability (IMUX 2 in frame) 99.99% Security (1-3 BER on IMUX 2) 1X1-22 SYSTEM COMPATIBILITY The is compatible with all RFL 91 and IMUX 2 T1/E1 multiplexers (See note on page 1) OPERATING MODES Full duplex (transmit and receive) POWER CONSUMPTION 2. watts maximum DIMENSIONS Transfer Trip Module 2 Function I/O Adapter Module 4 Function I/O Adapter Module WEIGHT Length: 9.8 in (24.8 cm) 4.7 in (11.9 cm) 4.7 in (11.9 cm) Width:.6 in (1.5 cm) 2.1 in (5.3 cm) 4.2 in (1.6 cm) Height: 4.5 in (11.4 cm) 5. in (12.7 cm) 5. in (12.7 cm) Transfer Trip Module 2 Function I/O Adapter Module 4 Function I/O Adapter Module Net:.62 lb (.28 kg).7 lb (.32 kg) 1.22 lb (.55 kg) Shipping: 1 lb (.45 kg) 1 lb (.45 kg) 1.5 lb (.68 kg) January 31, 28 4 (973)

5 INSTALLATION Before the DS-TT module can be placed in service, it must be installed in a multiplexer shelf. Installation involves determining the module slot in the Main Shelf or Expansion Shelf where the module will be installed, inserting an I/O adapter module into the rear of the shelf behind the module slot, connecting all signal wiring to the I/O adapter module, checking the settings of all switches and jumpers, and inserting the module into the front of the shelf. NOTE Power supply and time slot considerations may affect the installation of modules into an existing multiplexer shelf. Refer to the portions of your multiplexer operation manual covering Channel Module Configuration Guidelines and Adding More Channel Modules To Existing Systems for more information. The following instructions are provided for installing modules into existing systems. If the module was included as part of a system, installation was done at the factory, otherwise, proceed as follows: 1. Carefully inspect the and its I/O adapter module for shipping damage. If you suspect damage to the module or its Module Adapter, immediately contact RFL s Customer Service Department at the number shown at the bottom of this page. 2. Determine which module slot in the Main Shelf or Expansion Shelf the will be installed in. The module occupies one module slot in the Main Shelf or Expansion Shelf. Refer to the as supplied drawings furnished with the equipment for more information. 3. Determine which I/O Adapter Module will be used to make connections to the module. Each module installed in an IMUX 2 multiplexer requires an I/O Adapter Module. The I/O Adapter Module provides the appropriate connections for the desired interface. There are eight I/O Adapter Modules that can be used with the. These are listed below: I/O Adapter Module Type Part Number Output Type Figure *2 function 48/125V *2 function 25V *2 function 48/125V *2 function 25V 4 function 48/125V 4 function 25V 4 function 48/125V 4 function 25V solid state solid state relay relay solid state solid state relay relay *See NOTE on page 21 for 2 function systems. Make sure the I/O Module Adapter you are installing is the correct one for the desired application. >> text continues on page 9 << January 31, 28 5 (973)

6 NOT USED Figure 1. Controls and indicators, Transfer Trip Module. Table 1. Controls and indicators, Transfer Trip Module Item Name/Description Function 1 DIP Switch SW1 SW1-1 to SW1-5: Sets the SCB Address in accordance with Table 3. SW1-6: Sets Transfer Trip module to Local or Remote mode.* DOWN = Sets module to Local mode (settings can be made using DS-TT local RS-232 port) UP = Sets module to Remote mode (settings can be made using CM3 remote RS-232 port) 2 Switch SW2 (See Note 6 on page 27) Disable Switch. Is used to disable the module. It disables all trip outputs and all communications via the T1/E1 system. UP = ENABLE, DOWN = DISABLE 3 LED indicator (red) Lights when function 4 trip is received 4 LED indicator (red) Lights when function 3 trip is received 5 LED indicator (red) Lights when function 2 trip is received 6 LED indicator (red) Lights when function 1 trip is received 7 LED indicator (red) Lights when function 4 trip is transmitted 8 LED indicator (red) Lights when function 3 trip is transmitted 9 LED indicator (red) Lights when function 2 trip is transmitted 1 LED indicator (red) Lights when function 1 trip is transmitted 11 LED indicator (red) Lights during Alarm conditions and during programming Note: Effective with software version SW2TT21 LED will blink slowly when module is out of service. 12 Connector J1 An RS-232 port to connect a PC, Laptop or dumb terminal to the module. The RS- 232 port always operates using 8 data bits, no parity, and 1 stop bit. These parameters cannot be changed by the user. The baud rate is set at 96. (See note on page 1) (See Figure 2 for cable details) 13 Jumper J2 Enables or disables the watchdog timer. Used for factory testing only. Should always be in RUN (DOWN) position. 14 Jumper J3 Selects Relay or Solid-State output * SW1-6 is used only on units with software version SW2TT8 or higher. January 31, 28 6 (973)

7 Transfer Trip Module End PC or LAPTOP End Plugs into J1 of Transfer Trip Module Rx Tx GND pin Molex (or equivalent) connector housing with female pins (See note below) 9-pin D-subminiature connector (DB-9 Female) 3 2 Locking Tab Locking ramp 1 Top view of J1 connector on transfer trip module showing male pins Vendor Description Part Number Molex Series 2695/6471 Crimp Terminal Housing Molex Series 2759 Crimp Terminal Molex Incorporated Lisle, Illinois 6532 Note: Any equivalent connector can be used having.25 in. square pins on.1 in. centers Figure 2. Cable connections between the transfer trip module (RS-232 connector, J1) and a PC or LAPTOP. (This cable is required for local mode operation only. See page 26). January 31, 28 7 (973)

8 * EQUIV. SOLID STATE C NC NO * * EQUIV. RELAY Figure 3. Rear panel view of typical 2 function Adapter Module - IN + - IN + TRIP 4 TRIP 3 - OUT + - OUT + C NC NO Figure 4. Rear panel view of typical 4 function Adapter Module January 31, 28 8 (973)

9 INPUT TERMINAL BLOCK 125V J4 48V 125V J5 48V For 48V OPERATION, JUMPERS SHALL BE LOCATED AS SHOWN Figure 5. Location and use of voltage control jumpers on a typical I/O adapter module input board 4. Once the I/O adapter module has been selected, check the settings of the voltage control jumpers located on the I/O adapter module input board(s). All eight versions of the I/O module input boards shown in Figure 5 are identical, with the exception of the placement of the two voltage control jumpers J4 and J5. Note the location of these jumpers in Figure 5. For 48V operation both jumpers must be in the 48V position. For 125V operation both jumpers must be in the 125V position. The 25V modules should have both jumpers in the 125V position. See Table 2. Table 2. Voltage control jumper settings I/O Adapter Module part number I/O Adapter Module type J4 and J5 jumper position 2 function 48/125V solid state* 4 function 48/125V solid state 48V position for 48V operation, 2 function 48/125V relay* 125V position 4 function 48/125V relay for 125V operation 2 function 25V solid state* 4 function 25V solid state 125V position 2 function 25V relay* for 25V operation 4 function 25V relay * See NOTE on page 21 for 2 function systems. January 31, 28 9 (973)

10 5. Insert the I/O Adapter Module into the rear of the shelf directly behind the module slot where the DS-TT will be installed. The I/O Adapter Module will take up three slots for the 2 function version, and six slots for the 4 function version. This must be taken into consideration when selecting module slots. 6. Connect all signal wiring to the rear panel of the I/O Adapter Module. 7. Using DIP switches SW1-1 to SW1-5, set the DS-TT module address. For remote access, each channel module in an IMUX 2 multiplexer shelf must have a distinct module address. For this module, valid module addresses are the numbers 1 to 31, using the code shown in Table 3. The module address is usually set to the number of the physical slot in the shelf that the module will occupy; it can be set to any number from 1 to 31 that is not already being used by another module in the same multiplexer shelf. 8. Check the setting of DIP switch SW1-6. SW1-6 sets the DS-TT module to local or remote control. UP sets the DS-TT to remote mode (settings obtained from RS-232 remote port on CM3), DOWN sets the module to local mode (settings obtained from RS-232 local port on DS- TT). Set the switch to the desired position. 9. Set toggle switch SW2 to the DOWN position to disable the module. 1. Check the setting of jumper J2. It should be in the RUN position. This will enable the watchdog timer. 11. Check the setting of jumper J3. It should be in RELAY position if the I/O Adapter Module has a relay output. It should be in SOLID STATE position if the I/O Adapter Module has a solid state output. 12. Slide the module into the selected module slot until it is firmly seated. 13. Program the module parameters using local or remote interface as applicable. 14. Turn service on by placing the SW2 toggle switch to the UP position. 15. On the module record card (located to the right of the shelf), record the time slot number and other pertinent information. The module is now installed. January 31, 28 1 (973)

11 Table 3. SCB address settings, Transfer Trip Module Module Address SW1-1 SW1-2 SW1-3 SW1-4 SW1-5 1 DOWN DOWN DOWN DOWN UP 2 DOWN DOWN DOWN UP DOWN 3 DOWN DOWN DOWN UP UP 4 DOWN DOWN UP DOWN DOWN 5 DOWN DOWN UP DOWN UP 6 DOWN DOWN UP UP DOWN 7 DOWN DOWN UP UP UP 8 DOWN UP DOWN DOWN DOWN 9 DOWN UP DOWN DOWN UP 1 DOWN UP DOWN UP DOWN 11 DOWN UP DOWN UP UP 12 DOWN UP UP DOWN DOWN 13 DOWN UP UP DOWN UP 14 DOWN UP UP UP DOWN 15 DOWN UP UP UP UP 16 UP DOWN DOWN DOWN DOWN 17 UP DOWN DOWN DOWN UP 18 UP DOWN DOWN UP DOWN 19 UP DOWN DOWN UP UP 2 UP DOWN UP DOWN DOWN 21 UP DOWN UP DOWN UP 22 UP DOWN UP UP DOWN 23 UP DOWN UP UP UP 24 UP UP DOWN DOWN DOWN 25 UP UP DOWN DOWN UP 26 UP UP DOWN UP DOWN 27 UP UP DOWN UP UP 28 UP UP UP DOWN DOWN 29 UP UP UP DOWN UP 3 UP UP UP UP DOWN 31 UP UP UP UP UP January 31, (973)

12 FUNCTIONAL DESCRIPTION The following is a basic description of how the module operates. A simplified block diagram of the module appears in Figure 6. SYSTEM OVERVIEW The transfer trip module is a channel card for use in the IMUX 2 system. It transmits and receives data via the T1/E1 serial link and generates and receives trip commands via an I/O adapter module. Up to four trip inputs and four trip outputs can be supported. The module can be setup and interrogated remotely via the SCB of the IMUX 2. For local setup and interrogation, an RS-232 port is available. Front panel LEDs indicate the status of the trip inputs and outputs. A real time clock with sequence of events storage is also available. The module consists of three major sections. The microcontroller section contains an 8C32 embedded microcontroller and associated support devices. The trip FPGA (field programmable gate array) and its associated circuits handles all T1/E1 communication and trip I/O. The SCB FPGA connects the processor with the SCB of the IMUX 2. Miscellaneous other circuits are present to handle other functions. A switch is provided to disable the card for removal and insertion, and a jumper is provided to select between relay and solid state outputs. MICROCONTROLLER CIRCUIT The heart of the microcontroller circuit is an 8C32 8 bit embedded microcontroller. Its main purpose is to control the setup and interrogation functions of the transfer trip module. It does not do any processing of the T1/E1 data and trip signals. A PSD312 programmable device provides 2KB of RAM, 64KB of ROM, and port reconstruction for the 8C32. It is connected to ports and 2 of the microcontroller. A DS1642 device provides non volatile RAM, a real time clock function, and contains an embedded clock and battery. A MAX691 device provides a reset pulse on power turn on and a watchdog timer function. TRIP FPGA CIRCUIT The trip FPGA interfaces directly with the T1/E1 bus of the IMUX chassis. It is also connected to the trip inputs and outputs. Supporting the trip FPGA are two EPROMs which contain the transmit and receive CRC codes. SCB FPGA CIRCUIT The SCB FPGA circuit is used to communicate with the CM3B via the SCB. The transfer trip module type ID of 118 is encoded into the SCB FPGA device. January 31, (973)

13 EIGHT FRONT PANEL LEDS LATCH LATCH BI-DIRECT- IONAL WATCHDOG TIMER & RESET NON- VOLATILE RAM & REAL TIME CLOCK FRONT PANEL ALARM LED 8C32 MICRO- CONTROLLER ROM & RAM SCB FPGA SCB BUS TO CM3B T1/E1 BUS RS-232 PORT RX CRC EPROM TX CRC EPROM SCB ADDRESS SWITCH LATCH TRIP FPGA T1/E1 BUS DISABLE SWITCH INPUT BOARD OUTPUT BOARD TRIP OUTPUTS TRIP INPUTS SOLID STATE/ RELAY JUMPER I/O ADAPTER MODULE ALARM RELAY NO NC C Figure 6. Transfer trip module block diagram January 31, (973)

14 MISCELLANEOUS CIRCUITS The transfer trip module has eight LEDs on the front to indicate the condition of the trip inputs and outputs. These LEDs are driven by a latch which is memory mapped off the processor. An additional LED indicates an alarm condition. This LED and a local alarm relay are directly driven by the processor. A five position DIP switch is provided to allow the user to set the SCB address of the module. The processor reads the switch to setup the SCB FPGA. I/O ADAPTER MODULE(S) The transfer trip module must be used with one of eight I/O Adapter Modules. There are two and four function versions, and relay and solid state versions. See Figures 3 and 4, and Table 2. The two function version is assembled from two PCBs; one for inputs and alarms, and the other for outputs. The four function version uses the same two boards as the two function version but has an additional input and output board. The boards are interconnected via a series of short cables. INPUT BOARD The input board contains circuitry for two optically isolated inputs and one form C alarm relay. The components consist mainly of dropping resistors, a zener diode, and an optoisolator. An LC filter is also provided to prevent SWC from triggering an input. The dropping resistors are sized to allow a safe level of current to be drawn from the keying input. The zener diode and resistors prevent any voltage less than half the nominal keying voltage from causing an input. The optoisolator provides galvanic isolation from the keying circuits. OUTPUT BOARD The output board can be configured for either solid state or relay outputs. Each output board provides two outputs. The solid state output takes the oscillating trip signal and feeds it across a transformer to isolate it and then rectifies and smoothes the result. This feeds the gate of a FET transistor. The transistor is rated to carry many times the rated load for short periods but thermal limitations prevent it from carrying a large load indefinitely. An LC filter protects the FET from damage caused by surges on the outputs. The relay version of the output board has two output relays with LC filters. The relays have diodes to prevent the flyback effect from creating spurious noise. DIRECTIONAL COMPARISON BLOCKING MODE All MTS modules with ACTEL (U12) version SW2TTTR7 or later are capable of being used in directional comparison blocking applications. The functionality of the MTS is transformed into that of a typical single function carrier system. Inputs one and two are used as start and stop inputs. Outputs one and two are block outputs. Functions three and four remain normal transfer trip functions. Figure 7 illustrates how the unit works. Software settable jumpers J1 and J2 allow for optional inversion of the start and stop inputs. They are controlled by the settings described below. The start input will cause function 1 trip to be sent if the stop input is not active. When Function 1 is sent, the block outputs (outputs 1 and 2) are made active. If Function 1 is received the outputs go active as well. January 31, (973)

15 Input 1 (start) J1 Tx Function 1 Input 2 (stop) J2 Output 1 Rx Function 1 Output 2 Figure 7. Directional Comparison Blocking, block diagram The MTS module retains all of its existing functionality and operates in DCB mode only if commanded to. Otherwise the four functions operate as independent transfer trip commands. DCB mode is invoked by setting P13 bit 6 to a 1. This can be done directly or via NMS. Once in DCB mode the meaning of P7 bit and P7 bit 1 change. In normal mode these bits set the polarity of outputs 1 and 2. In DCB mode P7 bit now selects the polarity of the start input and P7 bit 1 selects the polarity of the stop input. Both polarities are normal if the bit is a zero and inverted if the bit is a one. To set these bits in NMS one should select output polarity for output 1 or 2 and change it appropriately. In order to have NMS support this feature the data base must be changed. In the TT card settings a new setting must be added. In the card master setting selection, the following format is required: Dir Comp Block setting choose2 on off default = off P13=?1?????? P13=??????? This will cause the NMS to bring up the directional comparison blocking on/off choice. ALERTS AND ALARMS If there is a loss of CRC or addressing, or if the disable switch is down, the transfer trip module will issue a module alert signal to the shelf common module. This applies only to CM3Rs Rev H or higher, and to transfer trip modules with software version SW2TT8 or higher. January 31, (973)

16 REMOTE CONTROL INTERFACE When the is installed in an IMUX 2 multiplexer, it can be operated under local or remote control. When under remote control, most of the module setup parameters can only be programmed using the RS-232 remote port on the shelf Common Module. See the IMUX 2 manual for additional information on using the remote control interface. When settings are changed, the alarm LED DS9 illuminates briefly while the data is being written to the EEROM. The remote control interface for the involves two sets of codes: P (parameter) codes, and S (status) codes and a set of four Sequence of Events Transfer Trip commands. The reports itself as a Type 118 module. P CODES P codes, when used in the parameter field on an SCL SET command, allow the user to set certain parameters on the by remote control, just like setting DIP switches on a module under local control. P codes also appear in the response to a CONFIG? query, providing a list of the current parameter settings. A typical response to a CONFIG? query looks like this: *OK CHANNEL CARD 3, TYPE 118 UNDER REMOTE CONTROL SRVC = ON P1 = 9 (B11) P2 = 9 (B11) P3 = 9 (B11) P4 = 9 (B11) P5 = 9 (B11) P6 = 9 (B1111) P7 = 24 (B1111) P8 = 8 (B1) P9 = 4 (B1) P1 = 1 (B11) P11 = 5 (B11) P12 = 6 (B11) P13 = 8 (B1) P14 = 12 (B11); There are fourteen P codes for the ; P1 through P14. Each P code is displayed as a decimal number from to 255, followed by its eight-digit binary equivalent in parenthesis. Table 4 lists the meaning of all P codes for the module. January 31, (973)

17 Table 4. Remote Configuration Settings P Code Bits Used Value Description SRVC (6)... ON Turns service on (module enabled) OFF Turns service off (module disabled) P1 (1) B (ms) (Setting = 2 to 255) Function 1 trip hold timer P2 (1) B (ms) (Setting = 2 to 255) P3 (1) B (ms) (Setting = 2 to 255) P4 (1) B (ms) (Setting = 2 to 255) P5 (2) B 3-16 (ms) (Setting = 2 to 15) Function 2 trip hold timer Function 3 trip hold timer Function 4 trip hold timer Function 1 pretrip timer B 3-16 (ms) (Setting = 2 to 15) Function 2 pretrip timer P6 (2) B 3-16 (ms) (Setting = 2 to 15) Function 3 pretrip timer B 3-16 (ms) (Setting = 2 to 15) Function 4 pretrip timer P7 B... Function 1 output polarity in normal mode or start input polarity in DCB mode. See notes on pages 19 through 24. normal 1 invert B... Function 2 output polarity in normal mode or stop input polarity in DCB mode. normal 1 invert B... Function 3 output polarity normal 1 invert B... Function 4 output polarity normal 1 invert January 31, (973)

18 Table 4. Remote Configuration Settings - continued P Code Bits Used Value Description P7 (Cont d) B... Function 1 unblock enable (8) disable 1 enable B... Function 2 unblock enable (8) disable 1 enable B... Function 3 unblock enable (8) disable 1 enable B... Function 4 unblock enable (8) disable 1 enable P8 B (ms) Alarm timer (delay) increments of 1ms P9 B (ms) increments of 1ms P1 B (ms) increments of 1ms Ping-Pong interval Ping-Pong time limit B Long Shelf Alert (See Note 7 on page 24) disable 1 enable P11 (3) B 1-24 for T1 Tx time slot 1-31 for E1 P12 (5) B -63 Tx address P13 (4) B 1-24 for T for E1 B... Rx time slot Path select D&I B 1 Terminal or D&I A B Normal mode 1 DCB mode P14 (5) B -63 Rx address See notes on pages 19 through 27. January 31, (973)

19 Note 1. Trip Hold Timer When a user selects a value for P1 through P4 trip hold timers, it must be in increments of 1. ms. In addition to this there is a negative offset of 1. ms. Also note that the minimum setting of P1 through P4 is 2, for security reasons. For example, if a user wants the Function 1 Trip Hold Timer to be = 7. ms, do the following: (7. ms) - 1 = 6. The 6 can be entered in either decimal or binary format. Therefore set P1 = 6 for a value of 7. ms in decimal format, or set P1 = B11 for a value of 7. ms in binary format. Thus enter the following SCL command: <address>:<subaddress>:set:p1=6; or <address>:<subaddress>:set:p1=b11; NOTE The user should avoid changing settings while the module is in service, as unintended operations may occur. Note 2. Pretrip Timer The pretrip timer on the MTS module provides security and determines the approximate trip time delay based on its setting. Version 5 of the Transfer Trip ACTEL changed from a 3-frame word to a 4-frame word, changing the increment of the trip time. Prior versions of the MTS module with a 3-frame word had a range of 2-12 ms for a setting range of 2-15 of the pretrip timer. Each increment was.75 ms. Starting with version 5, the 4-frame word trip time range is 3-16 ms for a setting range of 2-15 of the pretrip timer. Each increment is 1. ms. These times are approximate and will vary up to 1 ms based on the exact timing of the trip input. The nominal trip time is the approximate expected maximum for a given setting. Settings less than 2 are ignored for security reasons and a value of 2 is used. Version 5 of the ACTEL also supports backwards compatibility by offering a mode in which 3-frame words are used. This mode is selected by choosing TX addresses that are not recommended on previous versions. Addresses in which the fourth address bit is a one, select 3-frame mode. Conversely, addresses in which the fourth address bit is a zero, select 4-frame mode. 3-frame mode should only be employed when communicating with units with Version 4 or earlier ACTELs. >> Note 2 continues on next page << January 31, (973)

20 Note 2 Continued. The following table should clarify the trip times for various versions and settings: Pretrip Timer Nominal Trip Times Nominal Trip Times Setting 3-Frame Mode NMS 9. and earlier, Version 4 and earlier, and Version 5 and later with Tx addresses 8-15, 24-31, 4-47, Frame Mode NMS 9.2 and later And Version 5 and later with Tx addresses -7, 16-23, 32-39, 48-55, 1, The NMS software provides the pretrip settings in milliseconds and converts the time to a timer setting. The values currently calculated in NMS 9. and earlier are for version 4 ACTEL, and NMS 9.1 and later for version 5 ACTEL. Function 1 & 2 Pretrip Timer When a user selects a value for P5, it must be in increments of 1. ms. In addition to this there is a negative offset of 1. ms. Also observe in Table 4 that the Function 1 pretrip timer (F1) is represented by the lower four bits of P5, and the Function 2 pretrip timer (F2) is represented by the upper four bits of P5. Therefore when you set P5 equal to a number, you are setting F1 and F2 simultaneously. Also note that the minimum setting of F1 and F2 is 2, for security reasons. For example, if a user wants F2 to be = 4. ms, and F1 to be = 3. ms, do the following: For F2 (upper four bits): (4. ms) - 1 = 3 (decimal) = 11 (binary) For F1 (lower four bits): (3. ms) - 1 = 2 (decimal) = 1 (binary) The 3 and 2 can be entered in either decimal or binary format. Thus enter the following SCL command: <address>:<subaddress>:set:p5=5; or <address>:<subaddress>:set:p5=b111; >> Note 2 continues on next page << January 31, 28 2 (973)

21 Note 2. Continued. Function 3 & 4 Pretrip Timer When a user selects a value for P6, it must be in increments of 1. ms. In addition to this there is a negative offset of 1. ms. Also observe in Table 4 that the Function 3 pretrip timer (F3) is represented by the lower four bits of P6, and the Function 4 pretrip timer (F4) is represented by the upper four bits of P6. Therefore when you set P6 equal to a number, you are setting F3 and F4 simultaneously. Also note that the minimum setting of F3 and F4 is 2, for security reasons. For example, if a user wants F4 to be = 12 ms, and F3 to be = 1 ms, do the following: For F4 (upper four bits): (12 ms) - 1 = 11 (decimal) = 111 (binary) For F3 (lower four bits): (1 ms) - 1 = 9 (decimal) = 11 (binary) The 11 and 9 can be entered in either decimal or binary format. Thus enter the following SCL command: <address>:<subaddress>:set:p6=185; or <address>:<subaddress>:set:p6=b11111; NOTE On 2 Function Systems, Function 3 and 4, pre-trip timers must be set to 3ms. Note 3. Tx Time Slot The value entered for P11 shall be 32 - the desired Tx time slot. For example, if the user wants the Tx time slot to be = 27, then P11 shall be set = 5. This can be entered in either decimal or binary format as shown in the following SCL command: (Note that for E1 systems, actual time slot 1 cannot be used for payload. The first usage time slot is considered time slot 2 for the purposes of setting P11 and P13) <address>:<subaddress>:set:p11=5; or <address>:<subaddress>:set:p11=b11; January 31, (973)

22 Note 4. Rx Time Slot The value entered for P13 shall be 32 - the desired Rx time slot, + ( if path select is D&IB ) or +32 ( if path select is Terminal or D&IA ), and + ( if normal mode is selected ) or +64 ( if DCB mode is selected ). This comes about from the way P13 is configured. Bits 1 thru 5 define the Rx time slot, bit 6 defines Path Select ( either D&IB ) or ( Terminal or D&IA ), and bit 7 Defines either normal mode or DCB mode. Example 1: If the user wants the Rx time slot to be = 24, the path select to be D&IB, and DCB mode, then P13 shall be set = = 72. This can be entered in either decimal or binary format as shown in the following SCL command: <address>:<subaddress>:set:p13=72; or <address>:<subaddress>:set:p13=b11; Example 2: If the user wants the Rx time slot to be = 24, the path select to be Terminal or D&IA, and normal mode, then P13 shall be set = = 4. This can be entered in either decimal or binary format as shown in the following SCL command: <address>:<subaddress>:set:p13=4; or <address>:<subaddress>:set:p13=b11; See paragraph 7.7 of the IMUX 2 instruction manual for a complete discussion of the SCL commands. Note 5. Tx & Rx Address The use of identical Tx and Rx addresses on the same module is not recommended since it can prevent detection of loopback conditions. This can result in unwanted local end trip outputs. See Figure 8. DSTT Tx Rx 1 1 Not recommended 1 1 Rx Tx DSTT Figure 8. Identical Tx & Rx addresses at the same module is not recommended >>Note 5 continues on next page<< January 31, (973)

23 Note 5. continued The Transfer Trip module will accept address settings from to 63, however there are certain exceptions depending on the Actel version used as described in the Table 5. Table 5. Actel version vs. allowed addresses Actel Version Allowed Addresses Actel Version 5 or higher on both sides or Actel Version 4 or lower on both sides -7, , Actel Version 5 or higher on one side and Actel Version 4 or lower on the other side Use addresses in tables 6 & 7 as applicable (Also refer to Figures 1 and 11) As shown in Table 5, the selection of allowed Tx and Rx addressess on the DSTT module depends on the version of the Actel used at both sides (transmit end and receive end). To determine the Actel version on a DSTT module, remove the DSTT module from the multiplexer chassis and read the software label on device U12. The last one or two digits of the SW number indicates the Actel version. The software label will be similar to the one shown in Figure 9. U SW2TTTR7 98 RFL The Actel version of this device is 7 Typical DSTT software label for device U12 Figure 9. Typical Actel label In most cases the Tx address at one end will match the Rx address at the other end. See Figures 1 and 11 for addressing examples. >> Note 5 continues on next page << January 31, (973)

24 Note 5 continued. Actel version 7 Actel version 7 Tx 6 6 Rx DSTT Rx Tx DSTT Figure 1. Example of Tx/Rx addressing showing Actel version 7 at both sides (Legal addresses are -7, 16-23, 32-39, 48-55) Actel version 13 For Tx & Rx addresses, use Table 7 Actel version 2 Tx Rx DSTT Rx Tx DSTT For Tx & Rx addresses, use Table 6 Figure 11. Example of Tx/Rx addressing showing Actel version 13 at one side and Actel version 2 at the other side (See Tables 6 and 7 for legal addresses) Note that all systems including TTR4 or earlier on Tx or Rx end operate in Three Frame Mode. This will alter the Pretrip Timer setting as described in Note 2. >> Note 5 continues on next page << January 31, (973)

25 Note 5 Continued. Tables 6 & 7 are used to determine valid address selections when MTS modules with Actel versions 4 or lower are connected to modules with Actel versions 5 or higher. Both Tables are utilized; each of them pertains to one direction of the line. Table 6. Tx address for Actel version 4 or earlier and Rx address for Actel version 5 or later Required Tx and Rx Address settings for systems using different versions of DSTT modules Transmit Address (Transmitting MTS with ACTEL Version SW2TTTR4 or lower) Receive Address (Receiving MTS with ACTEL Version SW2TTTR5 or higher) >> Note 5 continues on next page << January 31, (973)

26 Note 5 continued. Table 7. Tx address for Actel version 5 or later and Rx address for Actel version 4 or earlier Required Tx and Rx Address settings for systems using different versions of DSTT modules Transmit Address (Transmitting MTS with ACTEL Version SW2TTTR5 or higher) Receive Address (Receiving MTS with ACTEL Version SW2TTTR4 or lower) January 31, (973)

27 Note 6. Note 7. Note 8. Service On/Off The service on/off setting via the SCL interface disables local tripping but does not disable T1 transmission of data to the remote MTS. The toggle switch on the front of the card must be in the disable position to disable transmission of data to the remote MTS. The toggle switch also disables local tripping. Long Shelf Alert If Long Shelf Alert is enabled, any alerts on the Transfer Trip module will be delayed in reporting to the common module for alarm timer delay x1 (i.e. P8 x 1). If alert is cleared during the delay, the shelf alert will still occur, but multiple alerts during the same period will count as one shelf alert. If disabled, the shelf alert will follow the local module alert relay. Unblock Enable This function will provide a local trip during an MTS communication outage lasting 2ms or more. When activated, the local trip will last for 15ms. January 31, (973)

28 S CODES S codes appear in response to a STATUS? query. There are four S codes for the RFL DS- TT. Like the P codes, each S code is a number displayed in both decimal and binary form. A typical response to a STATUS? query looks like this: *OK CHANNEL CARD 3, TYPE 118 >>>(alert or alarm message here, if there is one)<<< S1 = 3 (B11) S1 = 5 (B11) S1 = 4 (B1) S1 = 196 (B111); These codes provide information on the status of several conditions on the module. Table 8 lists the meaning of all S codes for the module. Table 8. Remote status messages ( S codes) Code Bits used Value Description S1 B... Function 1 input inactive B B B B B 1 active... Function 2 input inactive 1 active... Function 3 input inactive 1 active... Function 4 input inactive 1 active... Function 1 output inactive 1 active... Function 2 output inactive 1 active January 31, (973)

29 Table 8. Remote status messages ( S codes) - continued Code Bits used Value Description S1 (cont d) B... Function 3 output inactive B S2 B S3 B 1 active... Function 4 output inactive 1 active -31 Ping-Pong value in ms -2 # of new events since last read S4 B DS Alert inactive B B B B B 1 active Ping-pong Alert inactive 1 active... Disable Switch module disabled 1 module enabled... CRC status error 1 no error... Address error or disabled 1 no error... EEROM Write Alert inactive 1 active January 31, (973)

30 LOCAL CONTROL INTERFACE When the is installed in an IMUX 2 multiplexer, it can be operated under local or remote control. When under local control, the module setup parameters can only be programmed using the DS-TT local RS-232 port. The RS-232 port is labeled J1 and is located near the front of the DS-TT module as shown in Figure 1. Connections are made using the cable shown in Figure 2. Then use the SCL commands as described in the Remote Control Interface section of this instruction data sheet. NOTE Local mode requires transfer trip modules with software version SW2TT8 or higher and CM3R Rev H or higher. When settings are changed, the alarm LED DS9 illuminates while the settings are being written to the EEROM. The card should not be removed until after the LED goes OFF. January 31, 28 3 (973)

31 TRANSFER TRIP SPECIFIC SCL COMMANDS The SCL commands in this section are specific to the Transfer Trip module and are related to the sequence of events log. There are three types of occurrences that qualify as events in the sequence of events log. These are; input trip, output trip and alarm conditions. There are three types of alarm conditions; received address error, CRC error, or ping-pong exceeded preset limit. If any of these events occurrs, it will be entered into the sequence of events log with a date stamp (month, day, year) and time stamp (hours, minutes, seconds). Up to twenty events can be stored in the sequence of events log. Instructions on how to access the sequence of events log, and how to program the time and date stamp is discussed below. TIME? Command In order to read the time and date setting of an module do the following: For example, if the module is channel 3 in shelf number 2, EVENT INPUT: 2:C3:TIME?:; RESPONSE: *OK FROM NET ADDRESS = 2 CHANNEL CARD 3, TYPE 118 DATE = TIME = 13 Hrs.: 15 Mins.: 12 Secs.; In order to read one of the twenty sequence of events occurrences, do the following: INPUT: 2:C3:EVENT:2; RESPONSE: *OK FROM NET ADDERSS = 2 CHANNEL CARD 3, TYPE 118 EVENT NUMBER 2 DATE = TIME = 13 Hrs.: 15 Mins.: 12 Secs.: 34 ms. OUTPUT #4 ACTIVE INPUT #2 ACTIVE ADDRESS SIGNAL ERROR ACTIVE CRC ERROR ACTIVE PING PONG IS ms.; January 31, (973)

32 SET:TIME To set the time of the TT module do the following: The time is entered as hours, minutes, seconds. INPUT: 2:C3:SET:TIME= ; RESPONSE: * OK FROM NET ADDRESS = 2; If an incorrect time is entered: SET:DATE INPUT: 2:C3:SET:TIME= ; RESPONSE: * WHAT FROM NET ADDRESS = 2 BAD VALUE ; To set the date of the TT module do the following: The date is entered as month, day, year. INPUT: 2:C3:SET:DATE= ; RESPONSE: * OK FROM NET ADDRESS = 2; If an incorrect date is entered: INPUT: 2:C3:SET:DATE= ; RESPONSE: * WHAT FROM NET ADDRESS = 2 BAD VALUE ; January 31, (973)

33 TESTING When the modules have been configured and installed, they should be tested for proper operation before they are placed in service. EQUIPMENT REQUIRED A serial terminal capable of accessing the IMUX 2. A source of keying voltage equal to the keying voltage to be used in service. An indicator capable of detecting operation of the trip outputs. TEST PROCEDURE Once the module has been installed in an operating IMUX 2 system, the disable switch can be placed in the enable position. The connections to any trip outputs should be disconnected before proceeding with this test. The status values of the DS-TT should indicate that the module is not in CRC or Address alarm and that the ping pong value is less than the alarm limit. The alarm LED on the front panel should be off. When a keying voltage is applied to any input, the appropriate LEDs on the local and remote units should illuminate. The trip output contacts should close. If the appropriate LEDs and trip outputs respond as expected, the module is ready to put into service. TROUBLESHOOTING If the module remains in CRC alarm, the disable switch, timeslot and direction settings should be verified. Equipment and line loopbacks can be used to determine if the modules work when looped back on themselves. If the modules work in Equipment loopback but not in Line loopback, then something in the IMUX network is preventing the data from reaching the other terminal. If the module does not have a CRC alarm, but does have an Address alarm, the address settings on both modules should be verified. If the module does not have CRC or Address alarms but still lights the alarm LED, then the ping pong test is failing. If the alarms are inactive but the trip LEDs do not activate, the programming should be checked and the location of the module adapter jumpers should be verified. If the output LEDs light but the trip outputs do not close, the position of the solid state/relay jumper should be verified. The status of the service on/off setting should also be verified. January 31, (973)

34 MTS IRIG-B Synchronization Upgrade MTS IRIG-B LOCATION FOR PART NUMBER & REV LABEL LOCATION FOR SERIAL NUMBER LABEL MTS IRIG-B Module (18) MTS IRIG-B I/OModule (185) DESCRIPTION The modules shown above have been developed to give the standard IMUX chassis the ability to synchronize the MTS SOE with an external IRIG-B signal. The existing DS-TT Transfer Trip (MTS) module can be retrofitted to convert the 3-pin factory RS-232 connector into an IRIG-B connection. New Transfer Trip Modules (revision AD and later) will have an IRIG-B connection as well as the standard RS-232 connector. Upgrading existing units MUST include an update to SW2TT19 software. Upgrading an existing unit should only be performed by RFL Service Engineers. Listed in Table 9 below are the items included in the MTS IRIG-B Synchronization Upgrade with a brief description of their function. Table 9. MTS IRIG-B Synchronization Upgrade Item Part Number Description IRIG-B Module 18 IRIG-B I/O Module 185 Cable Harness 186 Cable Harness 182-xx Main IRIG-B module which plugs into the front of the IMUX chassis. This board can distribute un-modulated IRIG-B to up to 5 Transfer Trip (MTS) modules. This module adapter brings the IRIG-B signal into the IMUX. The adapter plugs into the rear of the chassis connecting to the IRIG-B Module. This cable plugs into the I/O board and is used to connect to a second chassis in a stacked chassis configuration. This cable plugs into the IRIG-B board and is used to connect to the Transfer Trip (MTS) boards. It can be provided in lengths of 1 (-1), 15 (-15) and 2 (-2). January 31, (973)

35 Rear IRIG-B I/O Module Plan view of IMUX IRIG-B coax connection J5 Mother Board MTS IRIG-B Module J2 thru J6 Front Transfer Trip (MTS) Modules Connecting Cable (182-XX) Basic Set-up and connection to Transfer Trip (MTS) Modules Remove existing Adapter Modules for access Power Supply I/O if required J5 Rear view of IMUX Connects to Mother Board that has second IRIG-B board connected through the front of unit Knock-out Panel IRIG-B in IRIG-B I/O Module Stacked Chassis Configuration Connecting Cable (186) Connects to J5 on I/O Board January 31, (973)

36 BOARD CONFIGURATION The Jumper (J1) on the MTS IRIG-B main module can be set for either Modulated or Unmodulated IRIG-B depending on the source signal. Connectors J2 thru J6 are used to distribute unmodulated IRIG-B to a maximum of five Transfer Trip (MTS) modules in the IMUX chassis. MTS IRIG-B Module (18) J2 J3 J5 J4 J6 LOCATION FOR PART NUMBER & REV LABEL LOCATION FOR SERIAL NUMBER LABEL J2 thru J6 for connection to Transfer Trip (MTS) Modules MODULATED J1 Jumper shown in the Modulated position UNMODULATED The three Jumpers on the IRIG-B I/O Board must all be set to either of the following depending on the source signal. IN Modulated Signal (Bi-Polar) OUT Unmodulated Signal (TTL) IRIG-B I/O Module (185) LOCATION FOR PART NUMBER & REV LABEL LOCATION FOR SERIAL NUMBER LABEL IN IN IN CONN. JK,FEM 3P 1172 RA 3 P6KE16C A P6KE16C A.1U F 1.5KE 4CA.68UF 1KV 1.5KE 4CA.68UF 1KV J1 J2 J3 OUT OUT OUT Jumpers shown in the Modulated position J5 P6K 6.8AT E R SB16 1 J5 connects to second IMUX Chassis in Daisy Chain applications January 31, (973)

37 OPERATION Before operation ensure that the Jumpers are set for the correct IRIG-B signal. When IRIG-B is present the indicator DS1 on the IRIG-B main module will be illuminated green to indicate that IRIG-B is active. January 31, (973)

38 Notes January 31, (973)

39 Notes January 31, (973)

40 NOTICE The information in this publication is proprietary and confidential to No part of this publication may be reproduced or transmitted, in any form or by any means (electronic, mechanical, photocopy, recording, or otherwise), or stored in any retrieval system of any nature, unless written permission is given by This publication has been compiled and checked for accuracy. The information in this publication does not constitute a warranty of performance. reserves the right to revise this publication and make changes to its contents from time to time. We assume no liability for losses incurred as a result of out-of-date or incorrect information contained in this publication. Publication No. ID DS-TT Printed in U.S.A. Revised January 31, Powerville Road Boonton Township, NJ Phone: (973) Fax: (973) January 31, 28 4 (973)