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Cisco 6160 Hardware Installation Guide
OL-2190-02 B0
Chapter 4 Installing a Cisco 6160 Without a POTS Splitter Configuration
Installation Procedures
4.2.7 Connect the BITS Clock Contacts
Note This step is optional.
Complete the following steps to connect the BITS clock to the wire-wrap pins on the I/O card:
Caution Use extreme caution when wire-wrapping the pin connections for the STAT_ALARMS and
BITS_A/BITS_B pins. Incorrect wire connections will cause damage to the equipment.
Step 1 Measure wire long enough to connect the appropriate pin on the I/O card to the BITS clock. See
Table 2-4 for wire specifications.
Note See the “I/O Cards” section on page 1-43 for an illustration of the pinouts that are located on the
I/O card. See Appendix C, “Connector and Pinout Specifications,” for pinout descriptions.
Step 2 Use a wire stripper to remove the casing from both ends of the wire.
Step 3 Use a wire-wrapping tool to attach the wire to the appropriate pins for the slot in which the primary NI-2
card is installed.
Note The BITS pins on I/O cards are slot specific. BITS_A pins are assigned to slot 11 and BITS_B
pins are assigned to slot 10. Each BITS clock input is independent and terminated at 100 ohms.
Step 4 Use a wire-wrapping tool to attach the other end of the wire used in Step 3 to the BITS clock.
Step 5 Repeat Step 1 through Step 4 to wire wrap the appropriate pins for a secondary (redundant) NI-2 card.
Step 6 Repeat Step 1 through Step 5 for each Cisco 6160 chassis being installed.
4.2.8 Connect the Cisco 6160 to the MDF
Use the cables described in Table 2-4 to connect the eleven Champ connectors located on the Cisco 6160
backplane to the MDF. This connection is for xDSL data flow between the Cisco 6160 system and
the MDF.
Note For additional information about the Cisco 6160 backplane connectors, see the “Backplane” section on
page 1-11.
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