Installation and Operation Manual

NCL1100 Installation & Operation Manual
1990/07/21 – 10 –
show the packets received and sent since the last screen update. The system updates the
screen approximately once/second. Outgoing packets are shown even if the RF link, between
the local and remote RF sites, is not working. If the RF link is not working, however, no
incoming RF packets are shown at the remote RF site even if the local RF site is placed in a
test mode so that the local site generates outgoing RF packets. If only one end is transmitting
and the other end is receiving, then the RF utilization shows 84% incoming at the remote site
and 84% outgoing at the local site, unless interference or another system decreases
performance. Refer to Figure 5 and Figure 6. To terminate this test, power off and then on
both indoor units, or press
T or Y once.
Figure 5: Display for Local RF Site during Testing
Incoming
Outgoing
Filtered
Incoming
Outgoing
Percent
Utilization
Overload
LAN RF
11 Mb/s
10 Mb/s
020406080100
0 20 40 60 80 100
Figure 6: Display for Remote RF Site during Testing
Incoming
Outgoing
Filtered
Incoming
Outgoing
Percent
Utilization
Overload
LAN RF
11 Mb/s
10 Mb/s
020406080100
020406080100
You can use a second diagnostic method to test the RF link, but it does not test the hardware.
To perform this test, follow these instructions:
1. Power both indoor units off, then on, to ensure that you use the proper command line
during the test procedure.
2. After the NCL1100 system is running and the display screen appears at both sites, at the
local site press the
R key to activate the display, then press yy. This action places both
RF sites in the test mode, sending and receiving the opposite site’s packets.
3. When both sites are transmitting and receiving test packets, check that the RF utilization
shows approximately 44% incoming and outgoing at both the local and remote sites.
Figure 7 illustrates the monitors for both the remote and local RF sites, when both sites
are transmitting and receiving. This is the
yy test.