Installation guide

32
Cisco uBR7200 Series Universal Broadband Router Wireless Modem Card and Subsystem Installation and Configuration
78-6030-03
Configuring a Wireless Modem Card
Following is an example of the running configuration for the “master” end of a 6-MHz high-throughput
link with a single antenna. In these examples, UBR1 and UBR2 refer to the two Cisco uBR7200 series
routers used at the ends of the radio link. The wireless modem cards are assumed to be in slot 6 of each
of the routers. The reference to radio 6/0 indicates that this interface occupies slot 6 and port 0.
The “slave” end of the link (UBR2) is configured in the same way except that the radio master command
is omitted and the transmit and receive frequencies are reversed in the radio operating-band command.
UBR1# show running-configuration interface radio 6/0
Current configuration:
!
interface Radio6/0
ip address 10.0.0.1 255.255.255.0
radio master
radio receive-antennas 1
radio operating-band tx 5733.00 rx 5781.00
radio channel-setup bandwidth 6.0 throughput high
radio transmit-power 15
end
IF Loopback
An IF loopback (see Figure 29) confirms that the hardware is seated properly in the chassis and that the
wireless modem card is functioning as expected.
Figure 29 IF and RF Loopbacks
Use the following commands to execute an IF loopback. These commands will shut down the radio link
and initiate the IF loopback.
UBR1(config-IF)# shut
UBR1(config-IF)# loopback local if
UBR1(config-IF)# no shut
The loopback should start and the Carrier and Out of Service LEDs on the wireless modem card should
light. If so, proceed to the “RF Loopback” section.
If you reissue the show running-configuration command, you will see that dual antenna IF loopback
has been selected. This is appropriate even if you are using a single antenna system.
Main antenna
(transmit and receive)
Diversity antenna
(receive only)
28546
Main
transverter
Diversity
transverter
Control
Data
Cisco
uBR7200
series
router
IF loopback
RF loopback
Wireless
modem
card
Control
Data
Power
feed
panel