Installation manual

Installing the Carrier and Assembly Components
2-173000-A2-GA31-F0 March 2001
The following table describes the SDU’s status
indicators.
Label
Color Description
OK green Normal operation.
Alrm red Fault in SDU.
Diag In yellow Incoming message from the NMS to
a DSU, DBM, or dial/lease modem.
Diag Out yellow Outgoing message to the NMS from
a DSU, DBM, or dial/lease modem.
SDU Modular Jacks and DIP Switches
At the rear of the SDU are four modular jacks:
• CC IN/DC OUT – 6-pin
• CC OUT/DC IN – 6-pin
• FP IN – 8-pin
• FP OUT – 8-pin
495-14812
SDU Circuit
Card
CC IN/DC OUT
CC OUT/DC IN
FP IN
FP OUT
S2
S1
S2
4
3
2
1
S1
4
3
2
1
ON OFF
S1 –
Protocol
Strap
S2 –
Carrier
Address
Below the four modular jacks are two sets of DIP (dual
in-line package) switches labeled S2 and S1.
• S2: Each device in a cabinet configuration must
have a unique identity. For Model 3611 with
software version 3.nn and earlier, use the top DIP
switch to set the carrier address.
• S1: Use the bottom DIP switch for CC or
DC operation of the NMS channel.
To set the carrier addresses:
If the device is . . .
Then . . .
Not Model 3611 Enter the address manually
from the front panel.
Model 3611 with software
version of 4.nn or higher
Enter the address manually
from the front panel.
Model 3611 with software
version of 3.nn or lower
Use the following procedure
to set the S2 DIP switch for
the carrier address.
" Procedure
1. Set the carrier address S2-1, S2-2, and S2-3 DIP
switches on the rear of the card, as specified in
Table 2-2. Note that each carrier in a cabinet must
have a unique address. Use Table 2-3 to determine
the new carrier’s address.
For a . . .
Then . . .
Single carrier Leave the S2 switch address
set for Carrier 1 (factory
default).
New cabinet
with an NMS
control channel
Use the address Carrier 1 for
the first carrier, Carrier 2 for
the next, and go up to the
Carrier 7 and 8 addresses for
carriers in the second cabinet
in a single installation.
For the next installation, the
carrier address is numbered 1,
but is on a different control
channel.
Carrier added
to an existing
control channel
Use Table 2-3 to determine the
new carrier’s address.