Cisco 10008 Installation And Configuration Manual page 19

Measure wire long enough to connect the appropriate pin on the BITS Filter module to the BITS clock.
Step 5
The BITS clock interface requires 24 to 26 American Wire Gauge (AWG) twisted-pair wire.
Step 6 Strip one end of the AWG wire approximately 0.75 inch (19.05 mm) using a wire stripper.
Use a wire-wrapping tool to attach the wire to the appropriate pins on the BITS Filter module for the slot
Step 7
that contains the PRE4.
Note
Note
Attach the other end of the wire to the BITS clock distribution device.
Step 8
Repeat
Step 9
Reinstall the rear cover on the chassis removed in
Step 10
Configuring a PRE4
After the PRE4 is successfully installed, you can configure it for network use. For information about
configuring the PRE4, see
on page
You do not need to configure a redundant (secondary) PRE4. The standby PRE4 automatically assumes
Note
the configuration of the active PRE4.
For further information about configuring a PRE4, refer to the Cisco 10000 series router publications at
this URL:
http://cisco.com/en/US/products/hw/routers/ps133/tsd_products_support_series_home.html
Removing a PRE4
Use the following procedure to remove a PRE from the chassis:
Step 1 Attach an antistatic strap to your wrist or ankle and to an ESD socket (see
a bare metal surface on the chassis or frame.
Step 2 Loosen the top and bottom captive screws (see
Note
Step 3 Simultaneously pivot both ejector levers (see
the backplane.
Step 4 Slide the PRE out of the slot (see
OL-13840-01
The BITS pins on the BITS Filter module are slot-specific. The RING-A, S-A, and TIP-A pins
are for the PRE4 in slot 0A; the RING-B, S-B, and TIP-B pins are for the PRE4 in slot 0B.
Each BITS clock input is independent and terminated at 100 ohms. The BITS pair includes an
optional SHIELD connection (pin S-A and pin S-B) for shielded twisted pair cabling.
Step 5 through Step 8 to wire wrap the appropriate pins for the PRE4 in the other slot.
"Managing the Router Using the Network Management Ethernet Port" section
35.
The top and bottom captive screws must be loosened prior to pivoting the ejector levers in
Step 2.
Figure 8) on the PRE.
Figure 7) away from each other to disengage the PRE from
Figure 6) and place it on an antistatic surface, or in an antistatic bag.
Cisco 10008 Router PRE4 Installation and Configuration Guide
Installing or Replacing a PRE4
Figure 5) on the chassis, or to
Step
19
3.