Specifications

Open CTM (Revision D)

Command Reference

The user will define the time interval (t) the command will use to monitor network activity. The user will

also define the number of times the command needs to see consecutive data packets (n) before the

watchdog timer expires and the command resets the network connection/device. If data is received

within this interval, the timer interval and number of times will be reset.

t = 0 disable (default)

t = 1 to 65535 time to wait for incoming data (seconds)

n = 0 to 65535 number of times the timer needs to expire before disconnecting and reconnecting to the

network

A cmd save and power cycle is required before this setting takes effect.

Typically, netwd is used in conjunction with the ping command. The ping command will generate the

network traffic that netwd will watch for.

Examples:

1. Set the timer to 10 seconds and check 6 times.

cmd netwd 10 6

In the above example, the command will look for incoming traffic from the network at 10 seconds

intervals. If no data traffic is detected for 6 consecutive intervals 6 x 10 = 60 sec. the command will

disconnect and reconnect to the network. If a reconnect does not resolve the issue (approx 10 seconds

reconnect time) the command will cycle the modem power completely (approx 50 seconds reconnect

time) after an additional 6 intervals of no data.

If data is received, the command will not reset the network connection and the device will operate

without interruption.

2. Query the current netwd configuration

cmd netwd

cmd netwd 10 6