
IF4W4 CAMERA AND FOUR-WIRE INTERFACE
Four interfaces in one rack unit, each joining a four-wire circuit to a Clear-Com partyline: a camera’s intercom, a two-way radio, a fibre link. It takes its power from the partyline, so it needs no supply of its own.
- Four circuits, each with its own level and null controls
- Puts each circuit on its own partyline, or several on one
- Transformer isolated, balanced or unbalanced
- Powered by the partyline
- Channels
- 4
- Connects
- Camera intercoms, two-way radios, fibre circuits and other four-wire devices
- Four-wire
- Terminal block for each channel; balanced or unbalanced
- Isolation
- Transformer, on every channel
- Receive load
- 600 Ω
- Transmit level
- Switched 0, −20 or −40 dB, for line or microphone level
- Microphone emulation
- Carbon or dynamic
- Partyline
- 3-pin XLR for each channel
- Linking
- Channels B, C and D can each be joined to A
- Controls for each channel
- Receive level, transmit level and three null adjustments
- Null test
- Built-in oscillator, with a test button for each channel
- Monitor
- 4-pin male XLR headset socket and 3.5 mm earphone jack
- Indicators
- Power, link and two-colour level for each channel
- Rack height
- 1U
- Dimensions
- 483 × 44.5 × 197 mm (W × H × D)
- Weight
- 2.65 kg
- Power
- From the partyline, 20 to 30 V DC; 50 mA maximum
- Operating temperature
- 0 to 50 °C






