363-206-204
Equipment and Rear Access Cable Installation
Issue 9 October 1998
2-25
2. For RT applications not using environmental telemetry or fan alarm con-
nections a G378 termination must be connected to P62 on the rear of the
shelf. The G378 termination is included in the shelf installation kit.
3. Connect the cable to P61 if at a CO or P62 if at an RT.
4. For remote terminal applications requiring more than 14 user definable
environmental inputs (Releases 8, 9, 11 and 13), connect an ED-8C724-22
Group 33 or 34 cable to P61 (in addition to the Group 369 or 370 cable on
P62).
5. Route the cable(s) out of the DDM-2000 OC-3 bay per Figure 2-13 to a
wire-wrap terminal strip (or where connections will be made).
6. Stack the cables as shown in Figure 2-2 or Figure 2-3.
7. Dress and tie the cables in the bay as close to the DDM-2000 OC-3 back-
plane as possible without touching any backplane pins.
8. Cut the miscellaneous (environmental) discrete telemetry cable to the
desired length at the telemetry panel.
9. Wire-wrap the loose end of the miscellaneous (environmental) discrete
telemetry cable to the wire-wrap terminal strip, making connections per
Tables 2-12 and 2-13 and Figure 2-15, 2-16 or 2-17.
NOTE
:
Each miscellaneous (environmental) discrete telemetry designation is con-
nected to the DDM-2000 OC-3 by two leads (wires).
NOTE
:
For each input, one lead should be connected to input-common and the
other lead should be connected to the appropriate alarm indication.
NOTE
:
For each output, one lead should be connected to output-common and the
other lead should be connected to the appropriate alarm indication.
NOTE
:
To input the external minor (MN) alarm or power minor (PMNT-IN) alarm,
one lead should be connected to the appropriate external alarm source
and an external ground should be connected to output common.
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