NRI—Fault finding
NGT Transceiver System Technical Service Manual 271
Upgrading the NRI firmware
The NRI firmware is upgraded using NSP. For information on using NSP see the NGT
System Programmer Help.
Control site
To upgrade the NRI firmware at the control site:
1 Connect a PC in which NSP has been installed to the handset via the programming
jack.
1 Use NSP to upgrade the NRI firmware.
Transceiver site
To upgrade the NRI firmware at the transceiver site:
1 Temporarily connect a desk console or a junction box and handset to the CIB
connector on the rear panel of the NRI.
1 Connect a PC in which NSP has been installed to the handset via the programming
jack.
1 Use NSP to upgrade the NRI firmware.
NOTE
If the firmware upgrade fails to commence, link pin 7 to pin 21 of the test
connector on the rear panel of the NRI, then switch the switchmode power
supply off then on again. This forces the NRI into its firmware upgrade
mode, which may overcome problems that are not PC or cable related.
NOTE
The firmware at the transceiver site cannot be upgraded from the handset
at the control site.
NOTE You can temporarily borrow this equipment from the control site.
NOTE
If the firmware upgrade fails to commence, link pin 7 to pin 21 of the test
connector on the rear panel of the NRI, then switch the transceiver power
supply off then on. This forces the NRI into its firmware upgrade mode,
which may overcome problems that are not PC or cable related.
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