Applications: listen-only portable user station compatible with standard single- and dual-channel broadcast IFB and party-line intercom circuits
Connectors:
IFB/Intercom Input: 3-pin female XLR-type
Headphone/Earpiece Output: ¼-inch and 3.5 mm 3-conductor jacks
IFB/Intercom Input:
Compatibility: broadcast-standard single- or dual-channel IFB or party-line intercom circuits
Wiring Scheme:
Pin 1: common for DC and audio
Pin 2: DC only (single-channel circuits) or DC with channel 1 audio (dual-channel circuits)
Pin 3: channel 1 audio (single-channel circuits) or channel 2 audio (dual-channel circuits)
Power Requirements: 18-35 Vdc, 20 mA nominal, 45 mA maximum with one output channel shorted at full level
Headphone/Earpiece Output:
Compatibility: intended for connection to mono (2-conductor) or stereo (3-conductor) headsets or earpieces with nominal impedance of 150 ohms or greater
Type: 2-channel voltage driver
Input/Output Gain: 19 dB, maximum
Audio Routing–Switch Set to Stereo Mode: channel 1 (pin 2) input to left channel output; channel 2 (pin 3) input to right channel output
Audio Routing–Switch Set to Mono Mode: channels 1 & 2 summed (added) then routed to both left and right channel outputs
Maximum Output Voltage: 8 Vpp, 1 kHz, 150 ohm load
Frequency Response: 40 Hz-20 kHz, ±1 dB, 150 ohm load
Distortion (THD N): 0.03%, 1 kHz, 150 ohm load
Options: mounting adapter allows Model 34 to be permanently mounted
Dimensions (Overall):
3.25 inches wide (8.3 cm)
1.8 inches high (4.6 cm)
3.95 inches deep (10.0 cm)
Weight: 0.6 pounds (0.3 kg)
Specifications subject to change without notice.