3-12
Cisco MWR 1941-DC-A Mobile Wireless Edge Router Hardware Installation Guide
OL-7872-04
Chapter 3 Installing the Cisco MWR 1941-DC-A Router
Connecting Cables
Step 2
Connect the end of one of the Y-cable stubs to the T1 or E1(RJ-48C) port on the Cisco 2-port
T1/E1-RAN on the first router.
Step 3
Connect the end of the other Y-cable stub to the T1 or E1 (RJ-48C) port (using the same type of port as
in step 2) on the 2-port T1/E1-RAN in the second router.
Step 4
Connect the other end of the Y-cable to the BTS patch or demarcation panel at your site.
Step 5
Remove the tape from the circuit breaker switch handle and reinstate power by moving the handle of
the circuit breaker to the ON position.
Step 6
Check that the CD LEDs go on, which means that the 2-port T1/E1-RANs internal CSU/DSU is
communicating with the CSU/DSU at the T1 or E1 service provider central office.
For non-redundant configurations, use a straight-through, shielded RJ-48C-to-RJ-48C cable.
Note
If you choose to use the Cisco 2-port T1/E1-RAN in a non-redundant configuration, you must close
the relays on the card using the
standalone
subcommand. For more information, see the
Cisco MWR 1941-DC-A Mobile Wireless Edge Router Software Configuration Guide
.
Step 1
Confirm that the router is turned off.
Step 2
Connect one end of the cable to the T1 or E1 (RJ-48C) port on the 2-port T1/E1-RAN card.
Step 3
Connect the other end to the BTS patch or demarcation panel at your site.
Step 4
Turn on power to the router (see
“Powering Up the Router” section on page 3-14
for more details).
Step 5
Check that the router CD LED lights, which means that the card’s internal CSU/DSU is communicating
with the CSU/DSU at the T1 or E1 service provider central office.
The 2-port T1/E1-RAN uses an RJ-48C connection, as shown in
Figure 3-7
.
Figure 3-7
RJ-48C Connection
Table 3-2 on page 3-13
shows the pinout configuration for the RJ-48C connectors on the Cisco 2-port
T1/E1-RAN card for both the shielded and unshielded cables for either T1 or E1.
Note
Cisco recommends using a shielded cable for your RJ-48C connectors.
24939
8 7 6 5 4 3 2 1
RJ-48C connector
