**SYSTEM MAINTENANCE ANNOUNCEMENT**

ALL CENTRAL OHIO INTEROPERABLE RADIO SYSTEM USERS:

XO Communications notified us that they will be performing upgrades to the network switches that support our radio system on Friday March 13th between 00:01 and 06:00. There will be at least one connectivity interruption of up to 10 minutes during this time frame that will cause the dispatch consoles to lose connection and the system to go into site trunking. Dispatchers will need to be ready to use back up radios/walkies during this outage. Field units may receive the “SITE TRUNKING” notice on their radios, but can continue to operate on their normal talk-groups.

Delaware County will be conducting a software upgrade to the system on Tuesday March 17th at 05:00. The system will have connectivity interruptions that will last through 06:00. These interruption will cause the dispatch consoles to lose connection and the system to go into site trunking. Dispatchers will need to be ready to use back up radios/walkies during this outage. Field units may receive the “SITE TRUNKING” notice on their radios, but can continue to operate on their normal talk-groups.

If you have any questions/concerns about the outages, please contact Patrick Brandt, Paul Richmond or Jay Somerville