DSE2548 LED expansion module INTRODUCTION The DSE2548 LED expansion module is used in conjunction with compatible DSE controllers to provide additional LED indication functionality. The LEDs are configured in the host DSE controller. The only configuration for the DSE2548 is the ID switch detailed below. For further details on configuring the host DSE controller, refer to the relevant DSE Configuration. Suite PC Software Manual. LED INDICATIONS LED COLOUR ACTION Status 1 to 8 Red Lit when the corresponding item is active Power On / Link Lost Red Flashing when the DC supply is connected and the data connection to the host DSE controller is not operating. Steady when DC supply is connected and data is being received from the host DSE controller. INTERNAL SOUNDER The DSE2548 LED expansion module has an integral sounder which may be activated upon a signal from the host DSE controller. The controller may activate the sounder when an alarm becomes active and be silenced when the alarm mute button is pressed. MUTE/LAMP TEST BUTTON Pressing the (Mute/Lamp Test) button causes all the LEDs on the DSE2548 expansion module to light and silences the internal sounder. If configured to do so, the host DSE controller also performs a lamp test and mute function. DSENET ID SWITCH The rotary ID switch is used to select the DSENet identification of the DSE2548 expansion module as the host DSE controller is capable of giving instructions to multiple DSE2548 expansion modules at the same time. The switch must be operated using a small screwdriver and set to match the required ID set in the host DSE module s configuration.
NOTE: The ID MUST be a unique number that is different from the ID of any other DSE2548 module connected to the host DSE controller. If two or more DSE2548 expansion modules are required to mimic each other they must be configured with different IDs, and both IDs configured the same way the host DSE controller. NOTE: The selection of the ID of other types of expansion modules DO NOT interfere/clash with the ID of the DSE2548. For instance, if the DSE2548 is set to ID 4, it is acceptable to have a different type of expansion module (for instance DSE2130) set to ID 4 also. REQUIREMENTS FOR UL CERTIFICATION Specification Description Screw Terminal 4.5 lb-in (0.5 Nm) Tightening Torque Conductors Terminals suitable for connection of conductor size 13 AWG to 20 AWG (0.5 mm² to 2.5 mm²). Conductor protection must be provided in accordance with NFPA 70, Article 240 Low voltage circuits (35 V or less) must be supplied from the engine starting battery or an isolated secondary circuit. The communication, sensor, and/or battery derived circuit conductors shall be separated and secured to maintain at least ¼ (6 mm) separation from the generator and mains connected circuit conductors unless all conductors are rated 600 V or greater. Communication Circuits Must be connected to communication circuits of UL Listed equipment Mounting Suitable for flat surface mounting in Type 1 Enclosure Type rating with surrounding air temperature -22 ºF to +122 ºF (-30 ºC to +50 ºC) Operating Temperature -22 ºF to +122 ºF (-30 ºC to +50 ºC) DIMENSIONS 180 mm X 116 mm X 43 mm (7.1 X 4.6 X 1.7 ) WEIGHT 0.36 kg (0.79 lb) TEMPERATURE Operating: -40 ºC to +70 ºC (-40 ºF to +158 ºF) Storage: -40 ºC to +80 ºC (-40 ºF to +176 ºF) PANEL CUTOUT 154 mm X 98 mm (6.0 X 3.9 )
TYPICAL WIRING DIAGRAM POWER SUPPLY Minimum supply voltage 8V continuous, 4V for up to 5 minutes. Cranking dropouts Able to survive 0V for 50mS providing the supply was at least 10V before the dropout and recovers to 5 volts afterwards. Maximum supply voltage 35V continuous (protection to 60V) Maximum operating current 112mA at 12V, 53mA at 24V Conditions: All LED s lit and sounder active. Maximum standby current 74mA at 12V, 35mA at 24V Conditions: All LED s off and sounder inactive.
TERMINAL SPECIFICATION Connection type Screw terminal, rising clamp, no internal spring Min cable size 0.5mm² (AWG 20) Max cable size 2.5mm² (AWG 14) Recommended Refer to table below cable size DSENET DSEnet is the interconnection cable between the host controller and the expansion module(s) and must not be connect to any device other than DSE equipment designed for connection to the DSEnet. Cable type Two core screened twisted pair Cable characteristic impedance 120 Recommended cable Belden 9841 Belden 9271 Maximum cable length 1000m (1km) when using Belden 9841 or direct equivalent. 500m (0.5km) when using Belden 9271 or direct equivalent. DSEnet topology Bus with no stubs (spurs) DSEnet termination Maximum cable length 1000m (1km) when using Belden 9841 or direct equivalent. Maximum expansion modules 500m (0.5km) when using Belden 9271 or direct equivalent. NOTE : As a termination resistor is internally fitted to the host controller, the host controller must be the first unit on the DSEnet. A termination resistor MUST be fitted to the last unit on the DSEnet. See the section entitled Typical Wiring Diagram elsewhere in this manual for details.
APPLICABLE STANDARDS BS EN 60068-2-1 (Minimum temperature) BS EN 60068-2-2 (Maximum temperature) BS EN 60950 BS EN 61000-6-2 BS EN 61000-6-4 BS EN 60529 (Degrees of protection provided by enclosures) UL508 NEMA rating -30 C (-22 F) +70 C (158 F) Safety of information technology equipment, including electrical business equipment EMC Generic Immunity Standard (Industrial) EMC Generic Emission Standard (Industrial) IP65 when mounted into panel with optional gasket IP42 when mounted into panel WITHOUT gasket Enclosure type 2 when mounted into panel WITHOUT gasket Enclosure type 12 when mounted into panel with gasket USER CONNECTIONS Terminal Function Recommended size 1 DC supply positive 1.0mm² (AWG 18) 2 DC supply negative 1.0mm² (AWG 18) 3 Screen DSEnet only 4 A 0.5mm² (AWG 20) DSEnet only 5 B 0.5mm² (AWG 20) DSEnet only
TYPICAL WIRING DIAGRAM CONTROLS AND INDICATIONS
LED INDICATIONS Function Colour Action Power on / Link lost RED Steady when DC supply is connected and data is being received from the host controller. Flashing when the DC supply is connected and the data connection to the host controller is not operating. Status 1-8 RED Lit when the corresponding channel is active SOUNDER The 2548 LED expansion module has an integral sounder, activated upon a signal from the host controller. The controller will activate the sounder when an alarm becomes active and silence the sounder when an alarm mute button (local or remote) is pressed. ID SWITCH The rotary ID switch is used to select the Identification of the 2548 expansion module as the host controller is capable of giving instructions to a number of 2548 expansion modules at the same time (Consult relevant modules instructions for further details on number of supported expansion units). The switch (located at the rear of the module) should be operated using a small screwdriver and set to match the required ID. NOTE: The ID MUST be a unique number, different from the ID of any other 2548 module connected to the host controller. If two or more 2548 controllers are required to mimic each other then they should be configured with different IDs, and both configured the same in the host controller. NOTE: The selection of the ID of other types of expansion modules WILL NOT interfere/clash with the ID of the 2548. For instance if the 2548 is set to ID4, it is acceptable to have a different type of expansion module (for instance 2130) set to ID4 also.
Box dimensions For more information please read the DSE operation manual