RTS SSA-424A Manuale Utente

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CHAPTER 1
Description and Specifications
General Description
The SSA-424A Dual Digital Hybrid interfaces two, 2-wire 
intercom lines to two, 4-wire intercom lines. Unlike earlier 
analog hybrids, the SSA-424A features advanced digital 
signal processing to achieve automatic nulling of the 2-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 2-wire intercom systems include RTS™ TW, 
Audiocom
®
, and Clear-Com
®
. Compatible 4-wire intercom 
systems include Telex’s ADAM™, ADAM CS™, and 
Zeus™ Digital Matrix Intercom Systems.
The SSA-424A is also available with optional call signal 
interfacing. This option provides bi-directional call signal 
compatibility between the 2-wire and 4-wire intercom 
systems.
With features like digital signal processing, peak-reading 
level meters and option call signal interfacing, the 
SSA-424A Dual Digital Hybrid assures ease of setup 
maximum transparency between intercom systems.
Features
Two Independent Hybrids: Interface two separate 2-wire 
lines to two separate 4-wire lines.
Automatic Nulling: Digital hybrids eliminate all nulling 
and ducking adjustments. Quick, trouble-free setup. Puts an 
end to concerns about echo and feedback when interfacing 
2-wire lines.
Peak Reading Level Meters: Quick and accurate visual 
audio level adjustment. No extra setup equipment or 
guesswork is required.
Direct ADAM/Zeus Audio Connection: Accepts standard 
ADAM/Zeus DB-9 or RJ-11 keypanel cables.
Transformer Isolated: All audio inputs and outputs are 
transformer isolated to prevent ground loops and hum.
Call Signal Option: Detects call signals from any of the 
compatible 2-wire intercom systems, and then provides a 
+5 VDC output to the 4-wire intercom system. Accepts a 
contact closure input from the 4-wire system and converts it 
to the call signal format required by the 2-wire system. The 
SSA-424A can be directly connected to an ADAM, ADAM 
CS, or Zeus GPI (General Purpose Interface). GPI inputs can 
be programmed to activate call signals and audio paths to 
any of the available types of communication with the 4-wire 
system, including intercom ports, camera ISO circuits, IFB 
circuits, etc. GPI outputs can be set up to place calls only 
from a specific keypanel within the 4-wire system, or from 
any keypanel within the 4-wire system that wishes to call the 
2-wire system.
Half-rack Wide, 1RU High: Two SSA-424As fit into a 
single rackspace. Compatible with RTS TW rack mount 
hardware. Can be mixed with other TW equipment.
Universal Power Pack: Ready for worldwide use. 
Automatically accepts any main voltage from 100-250 VAC, 
50/60 Hz. Power pack equipped with locking DIN connector 
for attachment to the SSA-424A.