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System-to-System Interface

Model: SSA324-#U

Ducking (Bilateral)
Functional Specifications
Level Adjustments
Monitoring
Nulling

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The Model SSA-324 is a System to System Adapter (or interface). It interconnects the voice signals between different intercom systems. In addition, it can optionally interconnect calls or tally signals between systems. Each SSA-324 includes two (2) 2-wire to 4-wire converters. The 4-wire interface can deliver and accept high level signals. An SSA-324 can also function as a 2-wire to 2-wire interface by interconnecting the two (2) individual interfaces at the 4-wire level. The SSA-324 does two (2) voice channels when used as a dual 2-wire to 4-wire interface, and one (1) voice channel when functioning as a 2-wire to 2-wire interface.

Ducking (Bilateral)
Functional Specifications
Level Adjustments
Monitoring
Nulling
Available in 110 volt version only

Spec Sheet available - Yes

Operating Temperature (Maximum): 122 F
Operating Temperature (Minimum): 32 F
Maximum Frequency Response (Bandwidth): 5 kHz
Maximum Frequency Response (Bandwidth): 5000 Hz
Minimum Frequency Response (Bandwidth): 200 Hz
Minimum Frequency Response (Bandwidth): 0.20 kHz
AC Voltage (Maximum): 230 Volts
AC Voltage (Minimum): 120 Volts
Current Draw: 0.20 Amps
Depth: 8 in
Height: 1.72 in
Width: 8.19 in
Product Weight: 2.75 lbs
Color: Light Gray
2-wire Input: Impedance: 5,000OHMS +/-20% single ended, 10,000OHMS differential; Operating Levels: -20dBu to +0 dBu, nominal
2-wire Output: Impedance: 5,000OHMS +/- 20% single ended, 10.000OHMS+/- 20% differential; Operating Level: -20dBu to +0 dBU nominal
4-wire Input: Impedance: 10,000OHMS minimum single ended, 20,000OHMS minimum differential operating levels; Level: -10dBu to +8dBu, nominal
4-wire Output: Impedance: single ended or differential; Operating Levels: -10dBu to + 8dBu, nominal; Transfer Functions (Duck Level set to no ducking); Voltage Gain, 4-wire In to 2-wire Out; Level Pot 100% rotation: 3dB; Level Pot 50% rotation: -15dB/4dB
Transfer Functions (Duck Level set to no ducking): Voltage Gain, 2-wire In to 4-wire Out; Level Pot 100% rotation: 22dB 3dB; Level Pot 50% rotation: 8dB 4dB
Frequency Response (Reference: 1kHz, 0 dBu input): 4-wire Input to 2-wire Output: 200Hz to 5kHz, +1, -4dB, typical; 2-wire Input to 4-wire Output: 250Hz to 5kHz, +1, -4dB, typical
Signal-to-Noise Ratio (Reference: 1kHz, 0 dBu at 2-wire): 2-wire to 4-wire: -60dB; 4-wire to 2-wire: -60dB; Crosstalk (Reference: 1kHz, 0 dBu); System A to System B; 2-wire to 2-wire: -50dB
Storage: -40°C to 85°C (-40°F to 185°F)
Humidity: 0 to 95%. non-condensing

Interface 555021 kb - Data Sheet