User Manual

Appendix C - Bench Testing Landis+Gyr
86 98-1031 Rev AA Series IV Concentrator U and I Guide
Inconsistent WAN
This condition indicates that the CPU is communicating with the Gridstream Radio. However, the
Gridstream radio is not able to acquire time. If the time is not acquired in 2 to 3 minutes, the
Gridstream network in the cross dock is not operational. Check the test TOP application, the
Gridstream Radio connected to the test Take Out Point, Gridstream antennas, etc.
Figure C.4 Broken WAN
Inoperable WAN
This condition indicates that the communication between the Gridstream Radio and the CPU is
inoperable (or) the Gridstream radio is not configured correctly.
1. Configure the Gridstream radio into the cross-dock test network as described above.
2. Make sure that the “MCCTIME” Helper DCW is loaded in the radio. A device control word
(DCW) is a program written in the Gridstream programming language. DCW programs execute
within Gridstream devices and provide the ability to control the device. The DCW sits on top of
the firmware and directs the radio when it is time to reboot or perform advanced math functions.
3. Power cycle the concentrator and check for the time again.
Figure C.5 Broken WAN
CPU Configuration Check
To perform a check on the CPU configuration:
If the concentrator still does not pick time, then the unit has a inoperable WAN.