Is it possible to change the network management interface IP remotely?

Set up: Pair of 1600s which were in active/standby mode. Active unit running 9.4.7. Standby unit running 10.1 but needs some reconfiguration to it's monitors before it can be brought back into the HA pair.

 

 

I need to bring the standby unit up and change the config before making it active so that I can then upgrade the other box. At present the unit is off because it's heartbeat is enough to make the active unit behave incorrectly.

 

 

I can put the standby unit's network management port on another VLAN so that I can bring it up and reconfigure it, but I'd like to leave it so that when I test failover at 7am tomorrow morning I can bring it up remotely from my office, not have to trek across London to the data centre and switch things manually.

 

 

Can the net management IP be changed remotely, or just through the LED on the front of the box?