Specifications

installing The DXP DXP Correspondence Manual
Services Board
The second slot in the main cabinet if reserved for the services‘board.
You must have the power off to install the services board.
CPU Board
Remember that the CPU board consists of the RAM and Software
cards. Use the supplied # 4 machine screws to connect the ILAM card
to the CPU board. The RAM card is connected to the CPU board by
using the supplied screws and washers. A 64-pin DIN connector
connects the CPU board to the RAM card.
The Software card is connected to the RAM card with the supplied
lockwashers and machine screws. Signals pass between the RAM card
and the Software card through a 64-pin, dual, in-line connector.
Once you have attached the RAM and Software cards to the CPU
board, insert the entire assembly into the correct slot in the card cage.
Make sure DIP switch 8 is in the “on” position. Then power up the
system and check the status light on the CPU board. If it lights without
flashing, power off and move on.
Interface Boards
The first slot in the cabinet, moving from left to right, is for the
Interface 1 board (DXINM). The interface 1 board buffers the signals
sent from the main cabinet to the expansion cabinet. The expansion
cabinet interface board (DXINX) mounts in the first slot in the
expansion cabinet. The slot for the interface 1 board is smaller than
any of the other card-cage slots. The interface board is the only
half-sized board that inserts directly into the backplane. The interface
boards are connected with a 64-pin ribbon cable.
Station Boards
You can install a station board in any universal slot in either cabinet.
The DXP automatically numbers stations according to the station
board location; the number designations move from left to right, and
from the main cabinet to the expansion cabinet.
Each station board uses either one or two 25pair amphenol
connectors to go from the station board to the station punch-down
block. Each station board has a pre-power jack that allows a technician
to service the board while the systemstill has AC power on. (for more
information on the Station boards, see IMI66-085.)
3 - 8 Installing The DXP