User Manual

HLD-H/W WIBS
10
Cisco Systems, Inc. Confidential
6. Basic Operation
A GPS signal should be locked and aging before we run it.
Aging process should be done.
6.1 Power On
When the power is on, the LED should be shown like below
Green Yellow1 Yellow2 Green Red
Status On On On On On
6.2 GPS Locking
The GPS Antenna should be installed and connected to WIBS system properly.
Under the condition of proper GPS installation, LED should be shown like below
Green Yellow1 Yellow2 Green Red
Status Blink Blink Blink Blink Blink
If the received power of GPS signal is strong enough, GPS signal is locked easily.
It takes around 15min. to be locked, but it depends on the physical location of GPS Antenna.
On complete GPS lock, LEDs should be on like below
Green Yellow1 Yellow2 Green Red
Status On Off Off On Off
6.3 Aging
Usually, it takes about 1 hour to get aging after GPS locking
When aging is done, LED should be on like below
Green Yellow1 Yellow2 Green Red
Status on off off on off
Red LED indicates the timing problem possibly.
If you get the timing problem, just restart GPS locking and aging procedure like above