Shelf/Rack Alarm Connection - Alcatel MDR-8000 User Manual

SHELF/RACK ALARM CONNECTION

3.4
Each MDR-8000 rack equipped with the Power Distribution Unit (PDU) 695-6200-001/002
has a visual rack alarm indicator to report a shelf failure. In order to activate a rack alarm
visual indicator on the PDU, the shelf alarm output from each MDR-8000 shelf must be
hardwired to connector J1 on the PDU. The shelf alarm is provided on alarm connector
J305 pin 24 (major/visual alarm). A wire-wrap adapter (PN 695-4171-002) for connector
J305 is available. Insulated 22-gauge solid copper wire is recommended for connecting to
the wire-wrap adapter. To attach to J1 (2-pin connector) on the PDU, use 2-position socket
housing PN 372-0114-140 and socket contact PN 372-0114-390. See Figure 3 - 3, sheet 1,
for shelf-to-rack alarm wiring.
Each MDR-8000 rack equipped with PDU 3EM13317AA has a blown fuse alarm visual
indicator and a Form C relay alarm output (J4, J5, and J6) for connection to customer
alarm equipment.
An optional Fuse and Shelf alarm plug-in assembly is available to provide shelf alarm connec-
tions requiring Form C relays. The alarm inputs (major and minor) must be hard wired to J3
on the PDU. The alarms are provided on alarm connector J305 pin 24 (major/visual alarm) and
pin 50 (minor/audible alarm) of each shelf. A wire-wrap adapter (PN 695-4171-002) for connec-
tor J305 is available. Insulated 22-gauge solid copper wire is recommended for connecting to
the wire-wrap adapter and also to J3 on the PDU. Alarm outputs are transmitted to customer
equipment via Form C relay outputs (J4, J5, J6, relays 1 through 8). This option also includes
the blown fuse alarm indicator and Form C relay alarm output (J4, J5, and J6 – relay 9). See
Figure 3 - 3, sheet 2, for shelf to PDU alarm wiring.
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