1-39
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
Note The TCC2 does not support Ethernet polarity detection. The TCC+ and TCC-I both support this feature.
If your Ethernet connection has the incorrect polarity (this can only occur with cables that have the
receive wire pairs flipped), the TCC+ or TCC-I will work, but the TCC2 will not. In this event, a standing
condition, “Lan Connection Polarity Reversed”, will be raised. This issue will most likely be seen during
an upgrade or initial node deployment. To correct the situation, ensure that your Ethernet cable has the
correct mapping of the wire wrap pins.
Step 2 Return to your originating procedure (NTP).
DLP-A22 Install the TL1 Craft Interface
Note Rather than using the craft pins, you can use a LAN cable connected to the TCC+/TCC2 EIA/TIA-232
port to access a TL1 craft interface.
Step 1 Using #22 or #24 AWG (0.51 mm² or 0.64 mm²) wire, wrap the craft interface wires on the appropriate
wire-wrap pins according to local site practice.
Note For information about attaching ferrites to wire-wrap pin fields, see the “DLP-A31 Attach
Ferrites to Wire-Wrap Pin Fields” task on page 1-59.
Step 2 Wrap the ground shield of the craft interface cable to the frame-ground pin.
Wrap the ground wire of your computer cable to pin A3 on the craft pin field. Table 1-4 shows the pin
assignments for the CRAFT pin field.
Note You cannot use the craft backplane pins and the EIA/TIA-232 port on the TCC+/TCC2 card
simultaneously. Using a combination prevents access to the node or causes a loss in connectivity.
Purpose This task installs the TL1 craft interface.
Tools/Equipment Wire wrapper
#22 or #24 AWG (0.51 mm² or 0.64 mm²) alarm wires
Prerequisite Procedures NTP-A4 Remove the Backplane Covers, page 1-15
Required/As Needed Required to access TL1 using the craft backplane pins
Onsite/Remote Onsite
Security Level None
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