Category Archives: Maintenance Alerts

XO Communications has notified COIRS that they will be performing critical network maintenance on the circuits that support our radio system on Wednesday 09/13 between 00:01 and 06:00. There will be multiple connectivity interruptions of up to 1 to 2 hours during this time frame that will cause the system to go into site trunking.

Dispatchers will need to be ready to use back up radios/walkies during this outage. Although the consoles will remain connected, they will not be usable on COIRS talk-groups during site trunking & walkies must be used.

Field units will receive the “SITE TRUNKING” notice on their radios, but can continue to operate on their normal talk-groups. System roaming will be turned off during this time so that units won’t get separated onto the Delaware side of the system. Delaware County users will not be affected during this outage.

If you have any questions/concerns about the outages, please contact Jay Somerville

XO Communications notified COIRS that they will be performing emergency updates to the network switches that support our radio system between Tuesday  (04/26) @ 23:45  and Wednesday (04/27) @ 06:00. There will be multiple connectivity interruptions of up to 2 to 3 hours during this time frame that will cause the system to go into site trunking.

Dispatchers will need to be ready to use back up radios/walkies during this outage. Although the consoles will remain connected, they will not be usable on COIRS talk-groups during site trunking & walkies must be used.

Field units will receive the “SITE TRUNKING” notice on their radios, but can continue to operate on their normal talk-groups. System roaming will be turned off during this time so that units won’t get separated onto the Delaware side of the system. Delaware County users will not be affected during this outage.

If you have any questions/concerns about the outages, please contact Jay Somerville

XO Communications notified COIRS that they will be performing emergency updates to the network switches that support our radio system between Friday 02/19 @ 23:00  and Saturday 02/20 @ 06:00. There will be at least one connectivity interruption of up to 2 to 3 hours during this time frame that will cause 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 Jay Somerville

Delaware County will be performing a fiber optic cable move that will affect our radio system on Sunday 11/08 between 8am and 10am. During this time there will be an outage that will cause 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 Jay Somerville

XO Communications notified COIRS that they will be performing emergency updates to the network switches that support our radio system between Monday 09/28 @ 23:00  and Tuesday 09/29 @ 06:00. There will be at least one connectivity interruption of up to 15 minutes during this time frame that will cause 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 Jay Somerville

XO Communications notified COIRS that they will be performing upgrades to the network switches that support our radio system between Saturday 07/18 @ 23:00  and Sunday 07/19 @ 06:00. There will be at least one connectivity interruption of up to 15 minutes during this time frame that will cause 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 Jay Somerville

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

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 February 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.

COIRS will be conducting a fiber network upgrade on Monday February 16^th at 05:00. The system will have one connectivity interruption that will last up to fifteen minutes. This 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 Paul Richmond or Jay Somerville

The Hard Road tower site has been taken off line as of 9am today. This site will remain off line until the system upgrade cut over set for December 9th. Users will notice diminished in-building coverage along the Scioto River corridor and in areas of Historic Dublin.

Due to the size of the equipment shelter and the fiber optics used to connect this site to the network, it had to be taken off line while Dublin IT and B&C Technicians complete hardware upgrades.

On Tuesday 12/09 starting at 8am, the upgrade of the COIRS radio system will begin and is expected to last approximately 36 hours. We are upgrading the system to version 7.14 and moving it to the latest IP technology.

A detailed plan for the cut-over will be provided this coming Friday, but here is a preview.

For responders, most of the transition will be transparent. Radios DO NOT need to be touched or reprogrammed. All of the talk-groups will remain the same. There will be three primary impacts:

1. Channels will be converted in two groups. During the conversion, only half of the normal talk-paths will be available so busy signals will be probable. Keeping unnecessary radio traffic to a minimum during this period will help greatly.
2. The Hard Road tower site will be off line for several days before and during the conversion to accommodate hardware and connectivity upgrades specific to that site. Walkie coverage along the river corridor will be affected.
3. Roaming between the Dub/Wor/Hill side of the system and the Delaware side of the system will be restricted. This may cause minor coverage problems in some of the border areas.

For dispatchers, console cutover impacts are:

1. Consoles will be cut over in groups. There will be a period of time when dispatchers will be operating on back up radios/control stations. Motorola will make every attempt to bring half of the new MCC7500 consoles up on the new system as soon as the first group of channels is converted. During this conversion, walkies/control stations will need to be used. ‘
2. For high risk incidents where radio traffic is critical, be prepared to use the EMERGENCY feature on the consoles to hold the frequency. This will keep users at the incident from getting busy signals and ensure resources are available.
3. Be prepared to move to back up systems if needed (MARCS/COLS)

We will be meeting with Motorola on Wednesday to review the final cut-over plan. Once that plan is final, a detailed description will be sent. If you have any questions or concerns, please contact Jay Somerville or Patrick Brandt.