2-4 DPP Hardware
297-1001-019 Standard 02.01 April 1997
External connections to the DMS-100 are made through bulkhead connectors,
terminal blocks, and ground studs provided on the sides of the cabinet as
shown in Figures 2-3, 2-4, and 2-5. The bulkhead connectors are located as
follows, when viewing the DPP unit from the rear:
• Left Side: Data and Peripheral Interface connectors.
• Right Side: Power, Ground, and Alarm Interface connectors.
Figure 2-3 illustrates the Data and Peripheral Interface connectors for a Turbo
DPP system. Turbo DPP systems are equipped to be polled by the HOC at a
maximum baud rate of 56K bits per second.
Figure 2-4 illustrates the Data and Peripheral Interface connectors for a Non-
Turbo DPP system. Non-Turbo DPP systems are equipped to be polled by the
HOC at a maximum baud rate of 9600 bits per second.
Each of two cabinet back panels is secured to the unit with eight screws. One
ventilation screen is mounted on each of these panels for the purpose of
providing an air intake for the three ventilation fans mounted inside the
chassis. The back panels may be removed for inspection, installation, or
troubleshooting, but should be in place during testing and normal operation.
Both chassis in the DPP cabinet contain a front cover made of aluminum and
secured to the front edges of the chassis with four screws. The cover
mounted to the top cabinet contains an EMI window, which allows an
operator to view the various switch and status panel controls located on the
front of the cabinet.
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