User manual TELEX AUDIOCOM SS-2002 RM TECHNICAL MANUAL REV D

[. . . ] (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). One of the following, depending on what was ordered: 1 P-box, 1-channel 9010-7627-007 1 S-box, w/handle, 1-channel 9010-7627-008 1 P-box, 2-channel 9010-7627-009 1 S-box, w/handle, 2-channel 9010-7627-010 1 U-box 9010-7627-004 1 S-box, w/out handle, 1-channel 9010-7627-011 1 S-box, w/out handle, 2-channel 9010-7627-012 1 Warranty Card 38110-390 2 End Caps 9310-7620-001 1 Statement of Conformity 38109-675 SS-2002RM SS-2002RM Final Assembly Foot, bumper, black User Instructions Statement of Conformity Warranty FCC Statement This equipment uses, and can radiate radio frequency energy that may cause interference to radio communications if not installed in accordance with this manual. The equipment has been tested found to comply with the limits of a Class A computing device pursuant to Subpart J Part 15 of FCC Rules which are designed to provide reasonable protection against such interference when operated in a commercial environment. Operation of this equipment in a residential area may cause interference which the user (at his own expense) will be required to correct. This product meets Electromagnetic Compatibility Directive 89/336/EEC 1 4 1 1 1 9010-7742-000 56471-001 9350-7741-000 38109-675 38110-390 Table of Contents INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] See "Sidetone Adjustment" on page 15. FIGURE 3. DIP Switch location RM version (left), SIP switch location S, U, and P Versions (right). Headset Connector Notes If you are using a monaural, dynamic-mic headset, or a monaural, telephone-style, dynamic-mic hands-free, or a handheld dynamic microphone, plug it into the headset connector. You can also use this connector with monaural headphones for listening when you are using either the built-in panel microphone or the optional gooseneck microphone for talk back. Panel Mic Connector Notes As an alternative to a headset or telephone style handset, you can use either the built-in panel microphone or an optional gooseneck microphone. 2. Insert the 1/4" RTS connector into the panel microphone connector. Screw the microphone in. 9 When a gooseneck microphone is inserted in the panel microphone connector, the built-in panel microphone is automatically bypassed. Use either of these microphones for talk back, then use the internal speaker for listening, or connect a pair of headphones to the headset connector for private listening. Intercom Channel Connections The method of connection depends on the type of box. The S box, P box, and RM versions connect to the intercom system using pre-fabricated cables in a phantom powered configuration. The U box version is designed for permanent installation, and it can be either phantom powered or locally powered. Description of Phantom-Powered Connection In phantom-powered connections the operating power and intercom audio for the entire system are carried over the same wires. The system power supply (PS-2001L, SPS-2001A, etc. ) automatically provides what is known as a terminating impedance for the intercom system. Without this terminating impedance, the sound quality becomes distorted, and the levels shift every time additional stations are connected. The disadvantage of the phantom power method is some operating power is lost over very long intercom cable runs, and performance at distant intercom station may be reduced. Generally, if intercom stations are within a few hundred feet from the system power supply, phantom power is sufficient. Also, increasing the number of stations reduces the overall operating distance. Phantom-power is generally the only method used to connect the S box, P box, and RM versions. NOTE: The distance over which power can be delivered is less than the distance over which audio can be delivered. Audio can be delivered for several miles to locally powered stations as described below. FIGURE 4. Phantom Powered Example Example: Figure 4 is an example of a phantom-powered system. Each channel is a separate party line and current per channel is limited to 1Amp. Both single and two-channel intercom stations may be connected by using Y cables (or JB2 Junction boxes). Pre-fabricated cables may be used, or cables may be constructed using the diagrams in Figure 10 on page 14. 10 Description of Locally Powered Connection Using a Locally Powered Connection, an intercom station is connected to the intercom line just like any phantom powered intercom station, except a local power supply is also connected. The external local power supply is located near the intercom station and provides power for that station only. Since power loss on the intercom lines is no longer an issue, the operating range is now limited only to the audio transmission range, which is several miles. Another advantage to this method is more stations can be connected to the intercom channels. When local power is supplied to an intercom station, the station detects it and automatically disconnects from the system's phantom-power supply. [. . . ] To use the speaker with a gooseneck microphone: set the speaker and panel mic keys to on. make sure a gooseneck microphone is inserted in the panel microphone connector. · · · · Receiving Calls When there is an incoming call signal, the call key flashes red. There is a beep tone in the headphones or speaker if the beep feature is activated. NOTE: The incoming call indication is provided only for the currently selected intercom channel in the case of SS-2002 & SS-2002RM models. To receive calls, do the following: 16 1. [. . . ]