RTS SSA-424A User manual

SSA-424A
Digital Interface/System-to-System Interface
The SSA-424A Dual Digital Hybrid interfaces two Two-Wire intercom lines to two Four-Wire lines. Unlike earlier analog hybrids,
the SSA-424A features advanced digital signal processing to achieve automatic nulling of the Two-Wire lines. Plus, each hybrid
features convenient peak-reading level meters to quickly match the levels between the lines that are being interfaced. The result
is easy and accurate setup. With the SSA-424A, all need for test tones, nulling adjustments and ducking adjustments have been
eliminated.
Compatible Two-Wire intercom systems include RTS TW, Audiocom, and Clear-Com. Compatible with Four-Wire intercom
systems. An internal call signal option board is also available for the SSA-424A. This option board provides call signal compat-
ibility with any of the two-wire systems listed above. The output can also be directly connected to an ADAM, ADAM-CS, Cronus,
or ZEUS GPI port. No external circuitry is required. With features like digital signal processing, peak-reading level meters and
optional call signal interfacing, the SSA-424A Dual Digital Hybrid assures ease of setup and maximum transparency between
intercom systems.
Two Independent Hybrids
Automatic Nulling
Peak Reading Level Meters
Direct ADAM/ZEUS Audio Connection
Transformer Isolated
Call Signal Option
Half-Rack Wide, 1 RU High
Universal Power Pack
Features
Line Drawing

SSA-424A Specications
2-Wire Ports
Input/Output Impedance: 5,000Ω, nominal
Operating Level: -10dBu to 0dBu, nominal
Level Adjustment Range: ±12dB
4-Wire Ports
Input Impedance: 10,000Ω, nominal
Output Impedance: 200Ω
Operating Level: -10dBu, 0dBu, +4dBu, +8dBu, +12dBu
System to System
Frequency Response: 200Hz to 5kHz, ±3dB
Signal-to-Noise Ratio (Ref 1kHz, 0dB @ 2-wire): -70dB nominal
Crosstalk: -80dB nominal
Environmental
Operating Temperature: -20°C to 50°C (-4°F to 122°F)
Storage Temperature: -40°C to 85°C (-40°F to 185°F)
Humidity: 0 to 95%, non-condensing
Power
100 to 250 VAC, 50/60 Hz, 18 Watts
Dimensions
1.72” (44mm) high, 8.19” (208mm) wide, 8.0” (204mm) deep
Weight
5.0 lbs. (2.3kg)
Finish
Thermoplastic front panel, aluminum case, light gray nish
Nulling:
Automatic
Ordering Information
SSA-424A
Digital Interface/System-to-System Adapter
Catalog Number: 90007824000
SSA-424A#U
Digital Interface/System-to-System Adapter
Catalog Number: 90007824001
This specications information is preliminary and is subject to change without notication.
Brand names mentioned are the property of their respective companies.
Contact Information
Telex Communications, Inc.
12000 Portland Avenue South
Burnsville, Minnesota 55337
Telephone: 877·863·4169
Fax: 800·323·0498
Form Number:
Date: March, 2006