Clear-com FOR-22 User Manual download pdf (Page 23)

Vitec Group Communications

FOR-22 Dual 4-Wire Interface Instruction Manual

4-1

SPECIFICATIONS

Note: 0 dBu is Referenced to 0.775 Volts RMS

Audio Output

Nominal Output Level Selectable by Jumper Between 0 dBu

-15 dBu, or -55 dBu

Impedance 600 ohms at 0 dBu

200 ohms at -15 dBu

20 ohms at -55 dBu

Frequency Response 200-10k Hz, ±3 dB

Maximum Output Level +20 dBu

Audio Input

Level 0 dBu nominal

Impedance >10K ohms (bridging)

Frequency Response 200-10k Hz, ±3 dB

Call Signal Input

Threshold 4 volts DC, Positive or Negative

Polarity

Maximum Input Voltage 50 volts

Relay Contacts

Contact Type 1 pair SPDT (single form C)

Contact Voltage Rating 24 volts DC

Contact Current Rating 1 A continuous, 2 A peak at 24 volts

DC Isolation

Greater than 10 mega-ohms.

Power Supply

Supplied by PSU-101 power supply

Voltage Required ± 8 volts DC Unregulated

Current Required 30 milliamps (per supply, no LEDs or

relays active)

160 milliamps (positive supply, LEDs

and relays active)

140 milliamps (negative supply, all

LEDs and relays active)

Connectors (on rear of IMF-3 frame)

RJ-45 "To Matrix" Connectors 2

DB-9M "Interface I/O" Connectors2

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Clear-com FOR-22 User Manual Page 23