Connecting Data Lines To The Shelf; Setting The Configuration Switches - Northern Telecom DMS-100 Series Installation And Maintenance Manual

0 297-2121-226
0 VINTAGE 05.01
0 Pin 3
0
0 Pin 4
0
0 Pin 5
0
0 Pin 6
0
0 Pin 7
0
0 Pin 8
0
0 Pin 9
0
0 Both modes (NO or NC) of alarm circuit 2 can be enabled or disa-
0 bled using switches located on the printed circuit board
0 power supply.
0 (closed). To enable the NO alarm 2
0 (closed). The alarm 1 circuits are always enabled.
0
0 If enabled,
0 mally open circuits close, and
0 whenever the input voltage to the power supply is not within the
0 standard DMS range of -42.5 to -56 VDC.
0
0 For general reference information on DMS
0 297-1001-122, Alarm System Description.
0

Connecting Data Lines to the Shelf

0 1. Connect
0 connector.
0 cable with a 50-pin telephone connector, make the connection
0 to the C0 connector (see Figure 4.5 on page 4-10).
0 lines are
0 and R1 screws of the
0 shelf backplane (see Figure 4.5 on page 4-10).
0 2. For RS-232C
0 the DTE to DB-25 connectors on the rear of the
0 Figure 4.5 on page 4-10.
0 For V.35 DUs, use the adapter cable to connect the DTE to the
0 DB-25 connector on the rear of the shelf.
0 page 4-10.
0

Setting the Configuration Switches

0 The DUs are
0 switched/slave.
0 When a DU
0 DMS-100 Family switch, the configuration switch must be
0 switched/slave operation.
0 4-12
Alarm 2 - normally closed (NC)
Alarm 2 - normally open (NO)
Ground
Alarm 1 - common
Alarm 2 - common
not used
not used
To enable the NC alarm 2 circuit, SW2 must be on
the alarm circuits signal alarm mode (that is, nor-
the data lines
If data lines are
on single-pair cables, make connections to the T1
six-position
DUs, use an RS-232C interface cable to connect
factory-set
is installed in a switched configuration through the
circuit,
normally closed
alarms,
to the appropriate shelf backplane
terminated
terminal
for a specific
of the
SW1 must be on
circuits open)
refer to NTP
on a multi-pair
If data
strips on the
shelf. See
See Figure 4.5 on
configuration,
set for