ME780C-RJ45 Line: RJ-45 Mini Driver Card C-RJ45 ME780 Line: RJ-45 ODULE MAIN M Power INTERFACE MODULE (REAR CARD) -TD Unit A -R D -TD Unit B Serial: 10-Pin RJ -R D Serial: 10-Pin RJ JB2 INTERFACE MODULE (REAR CARD) 1 2 3 MODEM A Modem-toModem Line JB4 1 2 3 MODEM B JB6 MODEM A 1 2 3 MAIN MODULE (FRONT CARD) RS-232 Serial Line JB7 JB5 1 2 3 1 2 3 MODEM B
SPECIFICATIONS: Hardware Required: Cards can be installed only in MicroRacks. Cable Required: For modem-to-modem line: Four-wire unconditioned twisted-pair, 19 to 26 AWG. Interfaces: Serial: EIA/TIA-561 (compatible with EIA RS-232 and ITU-TSS [CCITT] V.24; Line: Four-wire telco. Internal: Card-edge for module--MicroRack interconnection. INTRODUCTION: The Mini Driver Card is a dual rack card (it has a main [front] module and an interface [rear] module) incorporating two short-range modems.
Serial Interface: Signal Ground and Frame Ground (JB5): This jumper applies to the serial interface. In position 1 and 2, this jumper links the Signal Ground (SGND) line (Pin 5) of both serial lines to the interface module's frame ground (FGND). When this jumper is in positions 2 and 3, Pin 5 of both lines are disconnected ("lifted") from frame ground.
Installing the Mini Driver Card in the MicroRack: The Mini Driver Card is made up of a main (front) module and an interface (rear) module. The two cards meet inside the rack chassis; their mating 50-pin card-edge connectors plug into each other. Use these steps to install each Mini Driver Card into a MicroRack: 1. Slide the rear module into the back of the MicroRack on the metal rails. 2. Secure the rear module using the included metal screws. 3. Slide the front module into the front of the chassis.
OPERATION: Once you have configured each Mini Driver Card and connected the cables, you are ready to operate the units. This chapter describes the Card's LED's and the power-up procedure. Status LED's: The Mini Driver Card features nine front-panel status LED's (shown on the first page) that indicate the condition of the modem and the communication link. The Card will steadily light its green "PWR" LED as long as it is receiving power through its mid-plane MicroRack connection.
