Users Manual

66 MDS™ Master Station MDS 05-6399A01, Rev. G
gramming radios over the air, but it comes at the cost of interruptions in the pri-
mary use of the radio network. For best results, data polling should be stopped
during Intrusive Reprogramming. See Table 5-4 for reprogramming times.
- Block Size – Sets the overall block size (in bytes) of each data packet. Default setting is
512.
- Auto-Reboot – When enabled, the remote radios will automatically reboot after a
firmware image upgrade. If disabled, the newly loaded image will not become valid until
the remote radio is rebooted manually.
- Packet Size – Specifies the size of the reprogramming data packets. Default size is 40.
- Retry Count – Specifies the number of times each transmission is repeated. Default
setting is 3. Decreasing this value will decrease reprogramming times, but increase the
chance of a remote radio not properly receiving a packet.
- Download Delay – Introduce a time delay before reprogramming begins. Typically, it is
set to Short, but may be increased incrementally by selecting one of the extended delay
times from the drop-down box (Short, Medium, Long, None)
Table 5-3. Approximate Reprogramming Times - Passive Mode
Modem Speed (bps) Approximate Time Required
4800 6 hours
9600 1 hour, 30 minutes
19200 1 hour, 30 minutes
Radio assumptions: Signal strength -85 dBm or stronger, Packet Size: 40, Block Size:
512, Retry: 3, Download Delay: Short.
Polling assumptions: Serial polling with 1-second poll time, sending random data at 50-
100 bytes. Slower polling times will significantly increase completion time.
Table 5-4. Approximate Reprogramming Times - Intrusive Mode
Modem Speed (bps) Approximate Time Required
4800 1 hour, 30 minutes
9600 30-45 minutes
19200 20-25 minutes
Radio assumptions: Signal strength -85 dBm or stronger, Packet Size: 40, Block Size:
512, Retry: 3, Download Delay: Short
Polling assumptions: Polling should be temporarily suspended while OTA reprogram-
ming is active.
Start Reprogramming
When ready to reprogram the SD firmware, click the Start Reprogramming action.