CyberData - VoIP Multicast Gateway

For questions not answered here, please use our Contact VoIP Support Form to contact us.

1. If I wanted to power the device by using the auxiliary power connector, what type of power supply do I need?
2. I am unable to connect with the unit when it is plugged into a Cisco SLM 224P switch.
3. I have a Cisco 6513 switch. When I plug in a CyberData VoIP device, the device constantly reboots and will not register to the SIP server.

1. If I wanted to power the device by using the auxiliary power connector, what type of power supply do I need?

The power connection requires a +48v 380mA (min) power brick.
The connector is 2.5mm with a positive center.
Cisco's CP-PWR-CUBE-3 power brick is approved.

2. I am unable to connect with the unit when it is plugged into a Cisco SLM 224P switch.

The cables or switch ports that you are connecting to are set in switch or hub mode instead of endpoint stations. The MDIX setting needs to be changed to MDI since our VoIP products are end stations.
From the Cisco SLM 224P User Guide:
Change to MDI:
MDI / MDIX Displays the Media Dependent Interface (MDI) / Media
Dependent Interface with Crossover (MDIX) status on the port. Hubs and
switches are deliberately wired the opposite of the way end stations are
wired, so that when a hub or switch is connected to an end station, a
straight through Ethernet cable can be used, and the pairs are matched up
properly. When two hubs or switches are connected to each other, or two
end stations are connected to each other, a crossover cable is used to
ensure that the correct pairs are connected. The possible field values are:
- MDIX Use for hubs and switches.
- MDI Use for end stations.

3. I have a Cisco 6513 switch. When I plug in a CyberData VoIP device, the device constantly reboots and will not register to the SIP server.

Please adjust the switch power selection to Power inline static, as opposed to Power inline dynamic. This will allow the device to continuously receive 15.4W of power.