Cisco Systems MWR 1900 Manual De Usuario
3-6
Cisco MWR 1900 Mobile Wireless Edge Router Hardware Installation Guide
78-13982-02
Chapter 3
Installing the Router
Connecting the Network Cables
Note
If you choose to use the T1/E1 Multiflex VWIC in a non-redundant configuration, you must close
the relays on the card using the standalone subcommand. For more information, see the “Cisco MWR
1900 Software Configuration Guide.”
the relays on the card using the standalone subcommand. For more information, see the “Cisco MWR
1900 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 port on the 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.
Step 5
Check that the CD LED goes on, which means that the card’s internal CSU/DSU is communicating
with the CSU/DSU at the T1 or E1 service provider central office.
with the CSU/DSU at the T1 or E1 service provider central office.
The T1/E1 Multiflex VWIC uses an RJ-48C connection, as shown in Figure 3-4.
Figure 3-4
RJ-48C Connection
Table 3-2 shows the pinout configuration of the RJ-48C connectors on the T1/E1 Multiflex VWIC.
Table 3-2
RJ-48C Pinout
Y-Cable Specifications
Although it can be used in a standalone MWR 1900 router, the T1/E1 Multiflex VWIC is designed to be
used in redundant configurations. Such configurations require a special Y-cable for connecting the active
and standby routers. The Y-cable provides a dual E1 or T1 PRI connection.
used in redundant configurations. Such configurations require a special Y-cable for connecting the active
and standby routers. The Y-cable provides a dual E1 or T1 PRI connection.
24939
8 7 6 5 4 3 2 1
RJ-48C connector
Pin
Description
1
receive tip
2
receive ring
3
receive shield
4
transmit tip
5
transmit ring
6
transmit shield
7
not used
8
not used