3-11
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
Connecting the Fixed Fast Ethernet Interface Cable
The RJ-45 port supports standard straight-through and crossover Category 5 unshielded twisted-pair
(UTP) cables. Cisco Systems does not supply Category 5 UTP cables; these cables are available
commercially.
Follow these steps to connect the cable to the router Fast Ethernet (FE) port:
Step 1
Confirm that the router is turned off.
Step 2
Connect one end of the cable to the FE port on the router.
Step 3
Connect the other end to the BTS patch or demarcation panel at your site.
Figure 3-6
shows the RJ-45 port and connector.
Figure 3-6
RJ-45 Port and Plug
Figure 3-6 on page 3-11
lists the pinouts and signals for the RJ-45 port.
Connecting the Cisco 2-port T1/E1-RAN (VWIC-2T1/E1-RAN) Interface Cables
How you connect the ports of Cisco 2-port T1/E1-RAN depends on whether you are using the router in
a redundant or non-redundant configuration.
For redundant configurations, use a Y-cable (see the
“Y-Cable Specifications” section on page 3-13
).
Note
You must configure HSRP (Hot Standby Router Protocol) and the Y-cable mode for redundancy to
allow one router to become active (CD LED on, AL LED off) and the other to become the standby
router (CD LED off, AL LED on due to no framing). For more information, refer to the
Cisco MWR 1941-DC-A Mobile Wireless Edge Router Software Configuration Guide
.
Step 1
Confirm that both routers are turned off by ensuring that the circuit breaker on the panel board is in the
OFF position with the handle taped in the OFF position.
H2936
8 7 6 5 4 3 2 1
RJ-45 connector
Table 3-1
RJ-45 Pinout
Pin
Description
1
Receive Data + (RxD+)
2
RxD-
3
Transmit Data + (TxD+)
6
TxD-
