User manual TELEX AUDIOCOM SSA-324 REV G

[. . . ] Attn: Service COPYRIGHT NOTICE Copyright 2006 by Telex Communications, Inc. Reproduction, in whole or in part, without prior written permission from Telex is prohibited. WARRANTY NOTICE See the enclosed warranty card for further details. CUSTOMER SUPPORT Technical questions should be directed to: Customer Service Department RTS/Telex Communications, Inc. 12000 Portland Avenue South Burnsville, MN 55337 USA Telephone: 800-392-3497 Fax: 800-323-0498 This package should include the following: RETURN SHIPPING INSTRUCTIONS Customer Service Department Telex Communications, Inc. (Lincoln, NE) Telephone: 402-467-5321 Fax: 402-467-3279 Factory Service: 800-553-5992 Please include a note in the box which supplies the company name, address, phone number, a person to contact regarding the repair, the type and quantity of equipment, a description of the problem and the serial number(s). TABLE OF CONTENTS 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Front panel controls include 1) adjustments for null, level, ducking, 2) switches for monitoring and channel select. Rear panel controls include balance/unbalance switches for er the two-wire connection of each interface. R a panel connectors include two XLR3 connectors for two-wire, eight terminals for two four-wire interconections, one 25 pin D connector for duplicate four-wire connections plus options connections. The terminals are useful for rapid field connections. The D connector aids rapid replacement where meantime-to-repair is an issue and also allows option strapping. The SSA324 replaces the Model TWI224 and TWI222 interfaces where powering from the intercom is not required. Differences between the Model TWI224 / TWI222 interface and Model SSA324 include the following: 1)The SSA324 is self (locally) powered, the TWI224 / TWI222 is usually powered from the TW line or may be locally powered. 2) The SSA324 has a maximum output at the four-wire output port of +22 dBm, the TWI224 / TWI222 maximum output is 9 dBm. Adjustable, 0 to 30 dB. Toggles from one direction to the other (threshold is factory set). There is one adjustment for interface A and one for interface B. Each interface has depth level adjustment (front panel). Monitoring Uses standard headset. Front Panel has six pin female XLR type headset connector. Switchon frontpanel activatesthe monitoring function. User uses headset microphone or a built in oscillator to adjust for null in headset earphones (or via a built-in oscillator which is jumper selected by a jumper on the printed circuit board). There are three null adjustments associated with each twowire port. These are resistive (medium), capacitive (high), and inductive (low) nulls. Medium, High, and Low refers to frequency ranges; medium centers about 1kilohertz, high, 3 kilohertz, low, 300 hertz. 1. 2. 1 FUNCTIONAL SPECIFICATIONS The Model SSA324 consists of two two-wire to four-wire convertersin a singlepackage (converter A and converter B). If the two converters are interconnected, the Model SSA324 then functions as two-wire to two-wire converter. The method of interconnection is as follows: converter A's fourwire output is connected to converter B's four-wire input; converter A's four-wire input is connected to converter B's output. There are two level adjustments for interface A (to-from two-wire) and two for interface B (to-from two-wire). SSA324 User Manual 5 Application The Model SSA324 aljplications include the following: 1Lterfaceaudio signals between intercom systems as shown in Table 1-1, below. Table 1-1 Number of Channels Interfaced with the Model SSA324 by System System 2 McCurdy/ Generic 4W Audiocom Clearcorn RTS/2WB RTS/2WU RTSI4'WB 2W 2!inhM 2d!Jkd 2 W i2m !li a 2. Interface (using optional plug in boards) the following non-audio signals: Audiocom call signal to Audiocom call signal. RTS Systems call signal to RTS Systems call signal. RTS Systems call signal to form C relay contact transfer. [. . . ] NOTES: UNLESS OTHERWISE SPECIFIED CALL SEND 22K b > S205 CHI-OUT FRONT PANELCH~-*~ 0 N. C. I I 1. NOT USED: R226. R227 CONTRACT NO. Drown RTS SYSTEMS SCHEMATIC DIAGRAM- eurtmnk. c a l l t o r n l a SYSTEM TO SYSTEM ADAPTER. MODEL SSA324 O P T I O N CAR0 &CALL -'CALL SENO GNO SENO H I (A) (A) -3-31 PIN 2 (A) OF 4 4 0 1 '3OC CALL S I G E N GNO (A) '4 OC CALL S I G E N H I (A) '5 RELAY CONTACT NO (A) &RELAY CONTACT NC (A) (A) (8) (8) 18) '7RELAY [. . . ]