FE1/10&100Base-T Bridge

FE1/10&100Base-T Bridge Version: V2.0.4 Date: 5.12.2005

Contents Chapter 1 Introduction...3 1.1 Description... 3 1.2 Characteristics... 3 1.3 Technical Parameters... 4 Chapter 2 Operation...5 2.1 Front Panel... 5 2.1.1 Indicators... 5 2.2 Back Panel... 6 2.2.1 Power Supply... 6 2.2.2 E1 Interface... 7 2.2.3 Ethernet Interface... 8 2.2.4 Time Slots Settings... 8 2.2.5 Settings of SW... 10 Chapter 3 Installation...14 3.1 Appearance Checking... 14 3.2 Installation Process... 14 3.3 Installation Notice Proceeding... 14 Chapter 4 Troubleshooting...16 Chapter 5 Appendix Table...18 2-19

Chapter 1 Introduction 1.1 Description FE1/10&100Base-T Bridge is designed based on an ASIC chip, the chip adopts special patent technology of reduced dithering, digital phase locked and distill clock, E1 anti-jamming, etc. The inner software and hardware are all modularity, integrating coding, decoding, message insertion and alarm, and make the circuit simple so as to improve the reliability of the device. FE1/10&100Base-T Bridge provides at most bandwidth 2M data transmission channel for Ethernet through E1 lines, connects two LANs by PDH devices etc. It is suitable for many situations, such as increasing the range of LAN, founding a special Ethernet network, and so on. 1.2 Characteristics Support the transmission of IEEE 802.1Q VLAN frame and maximum 1536Bytes VLAN frame DHCP packet filtering function can be set Inside 32Kbytes MAC address memory space in the device, it can learn MAC address and refresh the list automatically At most 16Mb data RAM transmitting register, provide high performance data storing and forwarding capability Offer an Ethernet interface 10/100M FULL/HALF auto-negotiation Offer MDI/ MDIX two Ethernet interfaces Data rate of E1 interface N 64kbps(N=1~32)is adjustable Dithering tolerance and dithering transmission characteristic of E1 channel have high performance, which is superior to industry standard Support CAS and CCS mode Support CRC-4 verifying Two clock modes are selectable The circuit is designed simply, the device works steadily 3-19

1.3 Technical Parameters Ethernet interface E1 interface Clock mode Power supply Environment Weight Size Interface: 10/100 Base-T Standard: comply with IEEE-802.3 and 802.1Q Data rate: 10/100M auto-negotiation Connector: RJ45 Data rate: N 64Kbps(N=1~32) Tolerance: ±50ppm Line code: HDB3 Electric characteristic: comply with ITU-T G.703 standard Dithering characteristic: comply with ITU-T G.823 standard Dithering tolerance: comply with ITU-T G.823 standard Impedance: 75Ω unbalanced/ 120Ω balanced Internal clock (default) Line clock Voltage: AC110V/AC 220V/DC 48V/DC 48V/DC +24V Power consumption: 5W Working temperature: 0 C~50 C Storage temperature: -40 C~+70 C Relative humidity: 5%~95 % 0.4Kg 212mm 150mm 38mm 4-19

Chapter 2 Operation 2.1 Front Panel Fig 1. Front panel of FE1/10&100Base-T Bridge 2.1.1 Indicators There are ten indicators in the front panel of FE1/10&100Base-T Bridge, from right to left: PWR Green LINK Green FDX Yellow 10/100M Yellow TX Yellow RX Yellow E1LOS Red E1LOF Red PTOK Green TEST/ CRC_ERR Double colors Indicator of power supply Bright when power is on Link indicator of Ethernet interface Bright when Ethernet link correctly Duplex indicator of Ethernet interface Bright when Ethernet work at full duplex mode Rate indicator of Ethernet interface Bright when Ethernet work at rate of 100Mbps Blinking when Ethernet data transmitted Indicator of E1 data transmission Blinking when E1data transmitted Indicator of E1 data receiving Blinking when E1data received Alarm indicator of E1 code-breaking Bright when local device E1 code-breaking Blinking when remote device E1 code-breaking Local has higher priority Alarm indicator of E1 frame-lost Bright when local device E1 frame lost Blinking when remote device E1 frame lost. Local has higher priority Indicator of test result when device work normally Bright when the test result is right Indicator of test and CRC error when device work normally 5-19

Red: bright when local CRC error Blinking when remote CRC error Green: bright when device in test mode Blinking when remote device in test mode Table 1. Specification of front panel indicators 2.2 Back Panel Fig 2. Back panel of FE1/10&100Base-T Bridge (AC) Fig 3. Back panel of FE1/10&100Base-T Bridge (DC) 2.2.1 Power Supply AC socket: AC 220V input. DC socket: If the power supply is +48V, connect the device + pole with power +48V pole, the device pole with power GND. +24V power supply must be used with DC+24V model device: Fig 4. Sketch map of DC+48V connection If the power supply is -48V, connect the device + pole with power GND pole, the device pole with power -48V: 6-19

Fig 5. Sketch map of DC-48V connection NOTE: Please check the power polarity carefully, and connect after everything is confirmed. Otherwise the equipment may be caused the forever damages and we won t take any responsibility because of this! 2.2.2 E1 Interface E1 75Ω/120Ω switch STATE 75 Ω/120Ω INTERFACE 120Ω balanced interface 75Ω unbalanced interface Table 2. Definition of E1 75 Ω/120 Ω switch 75Ω unbalanced E1 interface connector are BNC connector, RX indicate E1 input, TX indicate E1 output; 120Ω balanced E1 interface connector is RJ45 connector, the pin assignment defined as below: Fig 6. Sketch map of RJ45 connector 120Ω balanced E1 interface pin assignment: PIN 1 2 3 4 5 6 7 8 Definition TxD+ TxD- RxD+ RxD- Table 3. Pin assignment of 120Ω balanced E1 interface 7-19

2.2.3 Ethernet Interface There are two RJ45 interfaces in the rear panel. One is marked by, it is parallel interface. It can connect to the network card s LAN interface by parallel UTP or to HUB or SWITCH by intercross UTP. The other is marked by, it is intercross interface. The way of connection is contrary to the interface. RJ45 s pin rank as Figure 6, pin s definition of the standard RJ45 is illustrated in the Table. Pin assignment of Ethernet interface: Pin 1 2 3 4 5 6 7 8 Definition TxD+ TxD- RxD+ RxD- Table 4. Pin assignment of Ethernet interface NOTE: Don t use the both Ethernet interfaces together. 2.2.4 Time Slots Settings Time slot settings switch for FE1/10&100Base-T Bridge is located at the bottom of the device. On the bottom board of FE1/10&100Base-T Bridge, there is a quadrate slot. Under the slot, there are four 8-bit Dips (totally 32 bits) for setting E1 time slots. From left to right NO.0~NO.31 bit corresponding E1 TS0~TS31, when opening up the corresponding time slot, when closed. Fig 7. Bottom panel of FE1/10&100Base-T Bridge 8-19

Settings of time slot defined as below table (see the Chapter 5 Appendix Table in detail): SW Status Function Status Function Default 0 Unframed 2048KBps / / 16 CCS (PCM31) CAS (PCM30) 1 TS1 is available TS1 is invalid 2 TS2 is available TS2 is invalid 3 TS3 is available TS3 is invalid 4 TS4 is available TS4 is invalid 5 TS5 is available TS5 is invalid 6 TS6 is available TS6 is invalid 7 TS7 is available TS7 is invalid 8 TS8 is available TS8 is invalid 9 TS9 is available TS9 is invalid 10 TS10 is available TS10 is invalid 11 TS11 is available TS11 is invalid 12 TS12 is available TS12 is invalid 13 TS13 is available TS13 is invalid 14 TS14 is available TS14 is invalid 15 TS15 is available TS15 is invalid 16 TS16 is available TS16 is invalid 17 TS17 is available TS17 is invalid 18 TS18 is available TS18 is invalid 19 TS19 is available TS19 is invalid 20 TS20 is available TS20 is invalid 21 TS21 is available TS21 is invalid 22 TS22 is available TS22 is invalid 23 TS23 is available TS23 is invalid 24 TS24 is available TS24 is invalid 25 TS25 is available TS25 is invalid 26 TS26 is available TS26 is invalid 27 TS27 is available TS27 is invalid 28 TS28 is available TS28 is invalid 29 TS29 is available TS29 is invalid 30 TS30 is available TS30 is invalid 31 TS31 is available TS31 is invalid Table 5. Settings of Time Slot 9-19

NOTE: 2.2.5 Settings of SW Summary 1) E1 framing status depends on NO.0 bit, is framed, is unframed. 2) E1 PCM30 or PCM31 depends on NO.16 bit, is PCM30, TS16 is used for transmitting singling; is PCM31, TS16 is used for transmitting 64K data, if more than 64K, keep NO.16 bit and open other bits. 3) All is unframed, the rate is 2048KBps. 4) Default settings is all. An 8-bit switch is on the back panel, signed by SW. Definition: SW CLOCK LOOP PATT DHCP BIT 1 2 3 4 5 6 7 8 DEFAULT TITLE SW-1 SW-2 SW-3 SW-4 SW-5 SW-6 SW-7 SW-8 Table 6. Default settings of SW CLOCK Settings (SW-1 SW-2) CLOCK SETTINGS SW-1 (close the power) SW-2 Clock mode INTERNAL clock (default) LINE clock (follow the opposite device Time Slot settings) Table 7. Clock settings INTERNAL clock (,): The clock created by internal oscillator. LINE clock (, ): The clock recovered from receiving E1 signal, under this settings the device can auto-follow the opposite device Time slot settings if the opposite device is INTERNAL clock. (Both ends are the same type device) NOTE: 1) Guarantee that there is only one INTERNAL clock device in one chain. 2) Avoid that all device in one chain don t set as LINE clock. If it is specific that INTERNAL clock existed in chain, set the device LINE clock. If not, set the device as INTERNAL clock. 10-19

LOOP Setting (SW-3, SW-4, SW-5) BIT3, BIT4, BIT5 of SW (SW-3 SW-4 SW-5) are LOOP Setting, REM only can used in frame E1, defined as below: SW DEFINITI SPECIFICATI DEFAULT Loop local : Loop SW-3 data back ANA : Work normally Loop line : Loop SW-4 back DIG : Work normally Loop the : Loop SW-5 remote device REM : Work normally Table 8. Loop settings SW-3: ANA Loop local data back, defined as Fig 8: Fig 8. Loop local data back SW-4: DIG Loop line back, defined as Fig 9: Fig 9. Loop line back SW-5: REM Loop the remote device, use only in framed E1. Defined as Fig 10: 11-19

Fig 10. Loop the remote device PATT (SW-6) BIT6 of SW is PATT test, cooperate with loop settings to check up the device and line. The result can get by observing PTOK: LOCAL(Internal clock) REMOTE(Line clock) LOCAL SW-3 ANA SW-4 DIG SW-5 REM SW-6 PATT SW-3 ANA SW-4 DIG SW-5 REM SW-6 PATT PTOK TEST CRC_ERR SPECIFICATI Not bright Not bright Work normally Not bright Not bright Not bright Green Green Blinking green Bright Green Bright Green Not bright Green Bright Green Loop local data back Loop line back, if E1 is framing,the led of test in the remote device is Blinking Loop the remote device, the led of test in the remote device is bright(this test is effective in frame E1) Local device test OK. Local device and E1 line test OK. Local device in test mode and loop is not set right. It is inanition. Local device, remote device and E1 line test OK. This test is effective in frame E1. Table 9. PATT testing NOTE: After test resume all the test and loop switches to the default setting, (SW3-6)all, or the device can t work. 12-19

DHCP Setting (SW-7, SW-8) BIT7, BIT8 of SW (SW-7, SW-8) enable/disable DHCP packets filtering function as to filter/un-filter DHCP packets, set as below: SW FUNCTI SW-7 SW-8 DEFAULT DHCP FILTERING ENABLE DISABLE Table 10. DHCP filtering NOTE: 1) When DHCP filtering enabled, DHCP client can t get IP address automatically. 2) After this setting changed, the device must be reset to active the setting. 13-19

Chapter 3 Installation 3.1 Appearance Checking 1) After you received the devices, firstly you should check whether the packing is well, otherwise, please contact with our company or the local agent in time so as to solve the problem. 2) After opening the box, you should check whether the device and the fittings are correct and well according to the incasement list, otherwise please contact with our company or the local agent. 3.2 Installation Process 1) Firstly place the device at a steady position, the working environment should be dry, tidy, ventilative, and temperature between 0~50. 2) Check whether the clock and time slots control switch are right before connecting the power supply. The device is set internal clock when leave factory, if it is point-to-point application, please set the local internal clock, the remote line clock which will follow the local device time slots setting automatically. 3) Check the power supply of E1/10&100Base-T Bridge, if it is model DC, please pay attention to the voltage value and polarity, and then connect the power supply referring to this manual. 4) Please test the device before using: open the power switch, indicator (PWR) is bright, which show the power supply is normal; when nothing connected, PWR(Green) E1LOS(Red) are all bright, the other indicators are all off. 5) Shut down the power, connect the E1 cables and Ethernet cable, set the clock and time slots control switch correctly referring to this manual, then open the power switch, the device will work normally. 3.3 Installation Notice Proceeding 1) During the process of transportation and installation, the device should be protected against vibration and mechanical damages. 2) Please examine the voltage value and whether the polarity accord with the mark on the rear panel before electrifying, or else the device may be caused permanent damages. 3) The device has already adjusted to the optimal status before leaving factory, please don t take apart the device privately if non technicians of our company. 14-19

4) When the device fault, you can make sure the failure range through self-loop function with the device and contract with technique service center of our company in time. 15-19

Chapter 4 Troubleshooting Normal working status: when E1/10&100Base-T Bridge works at 100M FULL duplex, PWR (Green) LINK (Green) FDX (Yellow) indicators are bright, 10/100M (Yellow) TX (Yellow) RX (Yellow) indicators are blinking, the others are off. When the device fails, firstly make sure the failure range according to the status of the indicators, then deal with the problem. Trouble phenomenon: no reaction after electrifying Diagnosis: Examine the power supply, if it is model DC, make sure the polarity, if the wire is connected inversely, please correct it! If it is model AC, please make sure whether the power control switch turn on. Exclusion: Correct the power connection or turn on the power. Trouble phenomenon: E1LOS indicator is bright Diagnosis: The device is set Internal clock, loopback the input and output ports by E1 cable, if this indicator is off, then mainly examine the E1 cable. Exclusion: Examine whether the receiving and transmitting E1 cables are inverse, if so please correct them; whether the E1 connectors are loosed, if so please make them again. Trouble phenomenon: E1LOS indicator is off, but E1LOF indicator is bright Diagnosis: This trouble is about due to three reasons hereinafter: 1) The core doesn t connect with skin of E1 input cable, or core and skin are intercrossed, or only connect one thread of 120Ω cable. 2) The two sides are both set Internal clock, moreover the time slots are different. Exclusion: 1) Make the E1 cables again. 2) Make sure there is only one Internal clock in the whole lines, the others are all line clock. 16-19

Trouble phenomenon: code error during communication Diagnosis: Make sure whether all devices are set line clock or more than two are Internal clock. Exclusion: Two Internal clock will occur error code, two line clock may cause communication interruption; adjust the clock to make sure only one device provide clock in one chain. Trouble phenomenon: LINK indicator is off Diagnosis: Make sure whether the connection of the Ethernet line is right and firm, and the power control switch of the opposite device is open. Exclusion: Correct the connection; there are interface and interface in the rear panel, so connect with different interfaces in terms of different connected device or Ethernet line. If you don t know the type of the Ethernet line, you can experiment by connecting it with the two ports, LINK(Green) indicator is bright, which show the connection is right; or make the Ethernet line again. Trouble phenomenon: indicators of local device TX(Yellow) is blinking, RX(Yellow) is off; those of remote device TX(Yellow) is off, RX(Yellow) is blinking Diagnosis: TX indicator of local device is bright, which show that the local device transmitted data to E1 line, RX indicator of remote device is bright, which show that the remote device can receive data from E1 line, and the transmitting port of local device connect with the receiving port of remote device normally. Exclusion: Examine whether the connection of the other E1 line or the E1 receiving cable of local device is normal. 17-19

18-19 Chapter 5 Appendix Table (PCM31) 1920K (PCM31) 1856K (PCM31) 1792K (PCM31) 1728K (PCM31) 1664K (PCM31) 1600K (PCM31) 1536K (PCM31) 1472K (PCM31) 1408K (PCM31) 1344K (PCM31) 1280K (PCM31) 1216K (PCM31) 1152K (PCM31) 1088K (PCM31) 1024K (PCM31) 960K (PCM31) 896K (PCM31) 832K (PCM31) 768K (PCM31) 704K (PCM31) 640K (PCM31) 576K (PCM31) 512K (PCM31) 448K (PCM31) 384K (PCM31) 320K (PCM31) 256K (PCM31) 192K (PCM31) 128K (PCM31) 64K (PCM31) Rate SW 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 PCM31 27 Blank is! 28 29 30 31 Reference Table of Time Slot Settings PCM31

19-19 2048K 2048K 1920K (PCM30) 1856K (PCM30) 1792K (PCM30) 1728K (PCM30) 1664K (PCM30) 1600K (PCM30) 1536K (PCM30) 1472K (PCM30) 1408K (PCM30) 1344K (PCM30) 1280K (PCM30) 1216K (PCM30) 1152K (PCM30) 1088K (PCM30) 1024K (PCM30) 960K (PCM30) 896K (PCM30) 832K (PCM30) 768K (PCM30) 704K (PCM30) 640K (PCM30) 576K (PCM30) 512K (PCM30) 448K (PCM30) 384K (PCM30) 320K (PCM30) 256K (PCM30) 192K (PCM30) 128K (PCM30) 64K (PCM30) Rate SW 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 PCM30 27 Blank is! 28 29 30 ALL ANY Settings 31 Reference Table of Time Slot Settings PCM30