Rear panel

1. AUDIO INPUT/OUTPUT CONNECTORS Eight channels of balanced analog audio, independently selectable to be either mic/line input with phantom power, or line output. These are identical to the NION audio connectors.

   Note: If PoE is used, the total power consumed by the unit must not exceed 12.5W. If more power is consumed, the unit will automatically shut down.

2. GPIO PORTS. Eight ports, independently configurable as digital out, high current digital out, digital in or analog in at 10 bit resolution.
3. SERIAL PORT. Supports full duplex RS-232/EIA-485/EIA-422 serial communications or half duplex EIA-485 serial communications. For information on the pin outs, see Serial communications.
4. CONTACT CLOSURES Ground pin (G), two user-controlled contact closure circuits (R1 and R2), one fault indicator contact closure (RF) and one DC supply output connector. The RF contact closure is activated when there is a fault with the CAB 8n and the Fault LED on the front of the unit is lit.

   Caution: If the Ext Pwr connector is used, the voltage available via the DC supply output connector (marked DC Out) will be the same as the voltage supplied via the Ext Pwr connector. Equipment connected to the DC Out connector must be compatible with the supplied voltage.

   Note: The DC Out connector cannot be used when the CAB 8n is powered using PoE.

5. FAULT CONNECTOR Three pin connector for linking the unit to a backup unit in a fault tolerant configuration.
6. POWER CABLE RECEPTACLE Two-pin Mini Euro connector. Accepts 12-24V DC at 1.6A.

   Use only the supplied power supply with appropriate mains cable.

7. COBRANET NETWORK I/O Single RJ-45 connector provides interface to the CobraNet audio network. This connector can also supply power to the unit if it is connected to a Power over Ethernet (PoE) switch.