17-27
Cisco ONS 15454 Procedure Guide, R5.0
March 2005
Chapter 17 DLPs A1 to A99
DLP-A22 Install the TL1 Craft Interface
Note The TCC2/TCC2P does not support Ethernet polarity detection. If your Ethernet connection has
incorrect polarity (this can only occur with cables that have the receive wire pairs flipped), a
“Lan Connection Polarity Reversed” condition is raised. This condition usually occurs 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 EIA/TIA-232 port on the
TCC2/TCC2P card 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.
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 17-3 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 TCC2/TCC2P card
simultaneously. Using a combination prevents access to the node or causes a loss in connectivity.
Purpose This task installs the TL1 craft interface using the craft backplane pins. You
can also use a LAN cable connected to the EIA/TIA-232 port on the
TCC2/TCC2P card to access a 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 1-7
Required/As Needed As needed
Onsite/Remote Onsite
Security Level None
Table 17-3 Craft Interface Pin Assignments
Pin Field Contact Function
Craft A1 Receive
A2 Transmit
A3 Ground
A4 DTR
To Next Page
Loading...
