1-38
Cisco ONS 15454 Procedure Guide, R4.0
March 2003
Chapter 1 Install the Shelf and Backplane Cable
NTP-A8 Install Wires to Alarm, Timing, LAN, and Craft Pin Connections
DLP-A21 Install LAN Wires on the Backplane
Note Rather than using the LAN wires, you can use the LAN connection port on the TCC+/TCC2 if preferred.
Use either the backplane connection or the TCC+/TCC2 front connection. You cannot use the LAN
backplane pins and the LAN connection port on the TCC+/TCC2 simultaneously; however, it is possible
for you to make a direct connection from a computer to the LAN connection port on the TCC+/TCC2
while the LAN backplane pins are in use as long as the computer that is connected directly to the
TCC+/TCC2 is not connected to a LAN.
Step 1 Using #22 or #24 AWG (0.51 mm² or 0.64 mm²) wire or CAT5 UTP Ethernet cable, wrap the wires on
the appropriate wire-wrap pins according to local site practice.
Caution Cross talk may result if both receive (Rx) and transmit (Tx) pins connect on the same twisted
pair of wires from the CAT5 cable. The two Tx pins need to be on one twisted pair, and the
two Rx pins need to be on another twisted pair.
A frame ground pin is located beneath each pin field (FG2 for the LAN pin field). Wrap the ground shield
of the LAN interface cable to the frame ground pin. Table 1-3 shows the LAN pin assignments.
Purpose This task installs the LAN wires on the backplane.
Tools/Equipment Wire wrapper
#22 or #24 AWG (0.51 mm² or 0.64 mm²) wire, preferably CAT5 UTP
Prerequisite Procedures NTP-A4 Remove the Backplane Covers, page 1-15
Required/As Needed Required if the node is using an external LAN connection
Onsite/Remote Onsite
Security Level None
Table 1-3 LAN Pin Assignments
Pin Field Backplane Pins RJ-45 Pins Function/Color
LAN 1
Connecting to data
circuit-terminating
equipment (DCE*) (a hub
or switch); the ONS 15454
is a DCE
B2 1 TX+ white/green
A2 2 TX- green
B1 3 RX+ white/orange
A1 6 RX- orange
LAN 1
Connecting to data terminal
equipment (DTE) (a
PC/workstation or router)
B1 1 RX+ white/green
A1 2 RX- green
B2 3 TX+ white/orange
A2 6 TX- orange
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