Cisco ONS 15454 Procedure Manual page 46

NTP-A9 Install the Electrical Card Cables on the Backplane
DLP-A23 Install DS-1 Cables Using Electrical Interface Adapters (Balun)
Purpose
Tools/Equipment
Prerequisite Procedures
Required/As Needed
Onsite/Remote
Security Level
All DS-1 cables connected to the ONS 15454 DS-1 ports must terminate with twisted-pair cables to
Note
connect to the DS-1 electrical interface adapter. The DS-1 electrical interface adapters project 1.72
inches (43.7 mm) beyond the SMB EIA.
Attach the SMB connector on an adapter to the SMB connector for the port's transmit pair on the
Step 1
backplane.
Attach the SMB connector on an adapter to the SMB connector for the port's receive pair on the
Step 2
backplane.
Terminate the DS-1 transmit and receive cables for the port to the wire-wrap posts on the adapter:
Step 3
a.
b.
c.
Note
Figure 1-20
attached on both sides of the shelf assembly to create DS-1 twisted-pair termination points.
Cisco ONS 15454 Procedure Guide, R4.0
1-46
This task installs the DS-1 cables using the electrical interface adapters.
Wire wrapper
Twisted-pair cables
DLP-A13 Install an SMB EIA, page 1-19
Required if you are using an SMB EIA for DS1N-14 cards
Onsite
None
Using a wire-wrap tool, connect the receive cables to the receive adapter pins on the backplane
connector for the desired port.
Connect the transmit cables to the transmit adapter pins on the backplane connector for the desired
port.
Terminate the shield ground wire on the DS-1 cable to ground according to local site practice.
If you put DS1N-14 cards in Slots 3 and 15 to form 1:N protection groups, do not wire Slots 3
and 15 for DS-1 electrical interface adapters.
shows a ONS 15454 backplane with an SMB EIA. DS-1 electrical interface adapters are
Chapter 1 Install the Shelf and Backplane Cable
March 2003