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Clear-Com EF-701M 4-Wire Interface w/ Call Signal
4-Wire Interface with Call Signal, Matrix-to-Partyline
The EF-701M interface converts a single channel of standard or TW partyline intercom to four-wire audio, while also converting call signals to RS-422 data (and back). The resulting four-wire audio plus RS-422 data can then be sent to a Clear-Com Matrix port, fiber-optic converter (modem) or connected to another EF-701M over twisted-pair cable such as CAT-5E.
Specifications:
- Clear-Com Format: Line Characteristics: Max Level Before Clipping: >=20dBu, Impedance: >=10K?
- Clear-Com Format: Signalling: Receive: <=4 VDC, Send: >=11VDC
- RTS Format: Line Characteristics: Max Level Before Clipping: >=20dBu, Impedance: >=10K?
- RTS Format: Signalling Tone: Send frequency: 20kHz ±1KHz, Receive frequency: 20kHz ±500Hz, Send level: >=-6dBu, Receive level: <=-20dBu
- Frequency Response: Partyline – Matrix: 200-10KHz ± 3dB, Matrix - Partyline: 200-10KHz ± 3dB
- Distortion: Partyline - Matrix: <=0.5%, Matrix - Partyline: <=0.5%
- Noise: Partyline - Matrix: <=-50dBu, Matrix - Partyline: <=-70dBu
- Max Gain: Partyline - Matrix (CC setting): 20dB ± 3dB, Partyline - Matrix (RTS setting): 16dB ± 3dB, Matrix - Partyline (CC setting): -5dB ± 3dB, Matrix - Partyline (RTS setting): -1dB ± 3dB
- Min Gain: Partyline - Matrix (CC setting): -7dB ± 3dB, Partyline - Matrix (RTS setting): -12dB ± 3dB, Matrix - Partyline (CC setting): -33dB ± 3dB, Matrix - Partyline (RTS setting): -29dB ± 3dB
- Power Requirements: Input Voltage Range: 20-30VDC, Quiescent Current: <=70mA, Max Current: <=80mA
- Rear Panel Connectors and Controls: Partyline: (1) XLR3F, RTS: (1) DB-15F, Matrix: (1) RJ-45, (2) Mode Switches, Front Panel Connectors and Controls: TS1 Earphone: (1) 3.5mm Jack Socket, Level Adjust: (2) Rotary Control, Null Adjust: (3) Rotary Control, Power Indicator: (1) Green LED, Data Indicator: (1) Amber LED
- Dimensions: 1.62 in. H x 5.94 in. W x 4.80 in D (41 mm x 151 mm x 122 mm)
- Weight: 1.75 lbs (.794 kgs)
- Accessories: Wiring diagram, adhesive backed TS-1 testing earphone
CALIFORNIA WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and to cause birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.
