Andrew Network Solutions Group WLS2NS Manuale Utente
WLS Installation and Maintenance Manual
Installation
Geometrix
®
Wireless Location System
36
Andrew Corporation Proprietary
connections, a WLS WAN port cable failure or problems within the carrier T1 network. Additional
loopback tests should be performed at various locations along the T1 signal chain to isolate the
fault. The WAN test requires that personnel be located at the WLS site to add/remove loopback
connectors. If the test is run remotely (e.g. via telnet) the connection to the WLS is generally
made via the WAN port, thus validating it’s operation and this test does not need to be run.
Testing the WLS WAN port requires a female DB-25 loopback connector be put on the WLS’ rear
DB-25 port. The pinout and connections for the WLS loopback connector are shown below.
loopback tests should be performed at various locations along the T1 signal chain to isolate the
fault. The WAN test requires that personnel be located at the WLS site to add/remove loopback
connectors. If the test is run remotely (e.g. via telnet) the connection to the WLS is generally
made via the WAN port, thus validating it’s operation and this test does not need to be run.
Testing the WLS WAN port requires a female DB-25 loopback connector be put on the WLS’ rear
DB-25 port. The pinout and connections for the WLS loopback connector are shown below.
15 - 17
14 - 16
13 – 19 - 21
10 – 18 - 23
9 - 12
2 - 3
15 - 17
14 - 16
13 – 19 - 21
10 – 18 - 23
9 - 12
2 - 3
Figure 2-14 WLS Loopback Connector
2.10.10
COM Port Test
This test is optional. It is not performed during the “All Tests” procedure. This test performs a
loopback test on the front-panel RS_232 serial port. This test requires that access to the WLS
under test is made via a local Ethernet or WAN port connection, and a RS-232 hardware
loopback plug is installed on the serial port.
An example of the test display is shown below.
loopback test on the front-panel RS_232 serial port. This test requires that access to the WLS
under test is made via a local Ethernet or WAN port connection, and a RS-232 hardware
loopback plug is installed on the serial port.
An example of the test display is shown below.
Enter your choice: 10
COM PORT TEST:
Test Result: PASS
Press any key to continue.
COM PORT TEST:
Test Result: PASS
Press any key to continue.
Failure of the COM port test failure indicates an internal WLS hardware fault. The failed unit
should be returned for repair.
2.10.11 Alarm
Contacts
The alarm contact menu option provides a tool for manually opening and closing the WLS alarm
relay contacts. This is intended for use in NOC coordinated dry-contact alarm relay testing.
An example of the display is shown below.
relay contacts. This is intended for use in NOC coordinated dry-contact alarm relay testing.
An example of the display is shown below.
Enter your choice: 11
CHANGE ALARM RELAY OPERATION
0 Normal Operation
1 Force Alarm
: 1
Relay Forced into 'Alarm' position
CHANGE ALARM RELAY OPERATION
0 Normal Operation
1 Force Alarm
: 1
Relay Forced into 'Alarm' position