User manual TELEX AUDIOCOM US2000A REV B

[. . . ] Telex® User Instructions A 00 20 US isten ten Lis all C lk Ta L ll Ca Mic t se ad He ic lM ne Pa l Kil lk Ta PA lk Ta All ® e lum Vo Model US2000A Intercom User Station Audiocom ® Intercom Systems ® 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 and 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. Introduction Thank you for purchasing the Audiocom US2000A Intercom User Station. [. . . ] With this setting all intercom stations connected to the one SPS2000A are combined on intercom channel 1 and all intercom stations connected to the other SPS2000A are combined on channel 2. The amplified speaker in each SPS2000A monitors a single intercom channel, and the US2000A dip switches are set to binaural operation (see page 9). When a PS-L is connected, the US2000A automatically disconnects from system power. Since the US2000A is not drawing power from the intercom system, more system power is available for additional belt packs, etc. 19 FRONT VIEW TYPICAL RACK-MOUNT SETUP PS2000L (CH 2 POWER) PS2000L (CH 1 POWER) RMK-D RACK MOUNT RMK-S RACK MOUNT US2000A BACK VIEW FOR DAISY-CHAIN CONNECTION 1 1 1 1 1 1 PS-L (OPTIONAL) 1/2 1/2 1/2 1/2 CH 1 CH 1 CH 2 CH 2 TO ADDITIONAL INTERCOM STATIONS BACK VIEW FOR HOME-RUN CONNECTION Note: For further information about the cable numbers, see page 13. PS-L (OPTIONAL) TW-7W 111111 1/2 CH 1 TW-7W 111111 1* 1 1 TW-7W 1* 1* * KEEP CABLES FROM POWER SUPPLY TO TW-7W AS SHORT AS POSSIBLE. 111111 1* 1/2 CH 2 TW-7W 1111111 1/2 CH 1 1/2 CH 2 TO ADDITIONAL INTERCOM STATIONS Note: A BOP-1000 may be used to rack mount 2 TW-7W splitters. Figure 9. In this configuration, the PS2000L Combine/Isolate switches are set to the Combine position. With this setting all intercom stations connected to the one PS2000L are combined on intercom channel 1 and all intercom stations connected to the other PS2000L are combined on channel 2. Typically, a headset is connected to the front panel of the US2000A, and the US2000A dip switches are set to monaural operation (default setting) so that both intercom channels are heard in the monaural headphones (binaural headphone operation is not supported). When a PS-L is connected, the US2000A automatically disconnects from system power. Since the US2000A is not drawing power from the intercom system, more system power is available for additional belt packs, etc. 20 FRONT VIEW US2000A FROM PREVIOUS INTERCOM STATION BACK VIEW FOR DAISY-CHAIN CONNECTION 1 CH 2 1 CH 1 Note: For further information about the cable numbers, see page 13. 1 PS-L (OPTIONAL) 1 CH 2 TO ADDITIONAL INTERCOM STATIONS CH 1 BACK VIEW FOR HOME-RUN CONNECTION FROM TW-7W SPLITTERS LOCATED NEAR SYSTEM POWER SUPPLY 1 1 PS-L (OPTIONAL) NO CONNECTION Figure 10. In this example, the US2000A is not located near the system power supplies (SPS2000A, PS2000L etc. ). The PS-L local power supply is optional and can be used to power a single intercom station. When a PS-L is connected to the US2000A, the US2000A automatically disconnects from system power. This makes more system power available for belt packs and other intercom stations. Also, when the US2000A is powered by a PS-L, it can be operated over a greater distance as a remote station. 21 EGM MIC FRONT VIEW US2000A SPK-2000 Note: For further information about the cable numbers, see page 13. BACK VIEW FOR DAISY-CHAIN CONNECTION 1 FROM PREVIOUS CH 2 1 INTERCOM STATION CH 1 4 PS-L PS-L (OPTIONAL) 1 1 CH 2 TO ADDITIONAL INTERCOM STATIONS CH 1 BACK VIEW FOR HOME-RUN CONNECTION FROM TW-7W SPLITTERS LOCATED NEAR SYSTEM POWER SUPPLY 1 1 4 PS-L PS-L (OPTIONAL) NO CONNECTION Figure 11. This example is similar to the one on the previous page, except an EGM microphone and an SPK-2000 speaker are used instead of a headset. Make sure the internal DIP switches are set for monaural speaker operation (default setting) as described on page 9. A PS-L local power supply is required for the SPK-2000, but is optional for the US2000A. When a PS-L is connected to the US2000A, the US2000A automatically disconnects from system power. This makes more system power available for belt packs and other intercom stations. Also, when the US2000A is powered by a PS-L, it can be operated over a greater distance as a remote station. 22 EGM MIC FRONT VIEW TYPICAL RACK-MOUNT SETUP SPK-2000 RMK-D RACK MOUNT RMK-S RACK MOUNT US2000A SPK-2000 FROM PREVIOUS INTERCOM STATION BACK VIEW FOR DAISY-CHAIN CONNECTION 1 CH 2 CH 1 1 PS-L PS-L 4 PS-L (OPTIONAL) BACK VIEW FOR HOME-RUN CONNECTION FROM TW-7W SPLITTERS LOCATED NEAR SYSTEM POWER SUPPLY 1 1 CH 1 4 PS-L 1 1 4 CH 2 CH 1 TO ADDITIONAL INTERCOM STATIONS CH 2 PS-L 4 PS-L (OPTIONAL) NO CONNECTION Note: For further information about the cable numbers, see page 13. Figure 12. This example is similar to the one on the previous page, except that each channel is heard in a separate speaker. Make sure the internal DIP switches are set for binaural speaker operation as described on page 9. [. . . ] When the program inputs are configured as desired, tap the Mic Kill key to exit programming mode and return to normal operation. Adjust program 1 and 2 levels via the trimmers on the back panel of the US2000A. Using Mic Kill If the Mic Kill feature has been enabled (page 8) you can use it to deactivate all talk keys on a single channel or on all channels. This feature is useful when a remote talk key has been left on and is causing unwanted noise on a channel. [. . . ]