Site Trunking Event

Technicians have identified an issue with the Nortel Switch at Delaware Prime. Currently the system is working off the built in redundant card.

On Thursday 08/30 at 00:32 both the Delaware and Dub/Wor sides of the system wend into site trunking, however the dispatch consoles gave no indication to the dispatchers that they were disconnected.   

Motorola System Support opened a trouble case at 00:40 on the issue. It was determined the redundant card in the Nortel switch had failed.  Technicians rebooted the switch and had everything back on-line at 01:13. 

Total Console outage time was approximately 40 minutes.  Field units were not impacted by this outage other than not being able to contact a dispatcher until the communications centers switched to back up radios. 

A replacement for the primary Nortel card has been ordered as a priority. A full service message will be posted when the work is complete. 

Network Maintenance

All COIRS System Users: 

XO Communications has notified us they will be doing upgrades to the network switches that support our system on Tuesday 07/31 starting at 01:00 and lasting until 03:00. There will be and expected outage of 30 to 60 minutes during this time frame that will cause the consoles to lose connection and the system to go into site trunking. Dispatchers will need to use back up radios/walkies during this outage. Field units will receive the "SITE TRUNKING" notice on their radios, but can continue to operate on their normal talk-groups. 

A reminder notice will be sent to all users on Monday 07/30.

Tower Maintenance Scheduled

Weather permitting over the next three weeks, Tri-County Tower Service out of North Jackson, Ohio will conduct a preventive maintenance inspection of the Huntley Road tower. This is a structural inspection and will not effect radio service. It is recommended that a complete structural inspection of the towers be conducted every three to four years. The inspection report will be posted when complete.

Meeting Notice

The next meeting of the COIRS Governing Board is set for Friday July 13th starting at 9:30am. The meeting will be held at the Worthington Police Headquarters building, 6665 Worthington-Galena Rd. CLICK HERE to review the meeting agenda.


Also, prior to the Governing Board Meeting, there will be a meeting of the COIRS Technical Committee that same day starting at 8:30am. It will also be held at Worthington PD. CLICK HERE to review the technical committee meeting agenda. 

For more information, please contact Board Secretary Jay Somerville.

Unscheduled Outage

At approximately 12:05 on Thursday June 28th, the Dub-Wor side of the radio system stopped allowing units & dispatchers to transmit. on all talk-groups. Motorola engineers dialed into the system and discovered the control channel for the system had stopped transmitting at all three sites. Within an hour, the system was restarted and the control channel restored. Total outage time was 60 mins.

Motorola is dispatching technicians to the sites in an attempt to diagnose the cause of the outage. Information on the cause will be relayed as soon as the final report is completed.

OarNET Maintenance

All COIRS System Users: 

OARnet has notified us they will be doing upgrades to the network switches that support our system on Thursday  06/07 (Wednesday night/Thursday morning) starting at 00:01 and lasting until 06:00. There will be temporary outages during these times that will cause the consoles to lose connection and the system to go into site trunking. The outages should last no more than 15 minutes at a time and may occur up to 5 times. Dispatchers will need to use back up radios/walkies during these outages. Field units will receive the "SITE TRUNKING" notice on their radios, but can continue to operate on their normal talk-groups. 

The number of outages needed to complete the upgrade are unknown and may not affect all circuits.

If you have any questions, contact Jay Somerville.

T1 Line Maintenance

XO Communications has notified us they will be doing upgrades to their network and T1 lines that support our system on Thursday  05/17 (TONIGHT) starting at 23:00 and lasting until 06:00. There will be temporary outages during these times that will cause the consoles to lose connection and the system to go into site trunking. The outages should last no more than 1 hour at a time and may occur up to 3 times. Dispatchers will need to use back up radios/walkies during these outages. Field units will receive the "SITE TRUNKING" notice on their radios, but can continue to operate on their normal talk-groups. 

The number of outages needed to complete the upgrade are unknown and may not affect all circuits.

If you have any questions, contact Jay Somerville.