User manual TELEX AUDIOCOM MCP2 RACK KIT DRAWINGS

[. . . ] If the original carton is not available, use any suitable container that is rigid and adequate sized. If a substitute container is used, the equipment should be wrapped in paper and surrounded with at least four)(4) inches of excelsior or similar shock-absorbing material. All shipments must be sent to the following address and must include the Proof of Purchase for warranty repair. Upon completion of any repair the equipment will be returned via United Parcel Service or specified shipper, collect. Factory Service Department Bosch Security Systems, Inc. [. . . ] Audiocom/Clear-Com Selector Switch The selector switch sets the intercom station for compatibility with either Audiocom or Clear-Com channel connector pin-outs, channel power requirements, and call signaling requirements. Configuration DIP Switches The DIP Switches are provided to enable/disable the following features: Mic Kill With this feature activated, the station's microphone may be turned off from a remote master controller. 4 Call Beep An optional call beep tone can be used for incoming call notification. Headset Mic Selection Balanced or unbalanced microphone may be selected. DC Call Enable: This may be turned on to use the intercom station with intercom systems that use DC call signaling. Connections Terminal Block The terminal block is used to connect intercom channel(s) and an optional local power supply. Sidetone Trimmers The sidetone trimmers are used to adjust the level of the station operator's own voice in the headphones. Mounting Holes The mounting holes fit any standard, two-gang electrical box. 5 Installation Configuration Switch Pre-check Before making connections, read the configuration switch notes that follow and make sure all switches are properly set for your intended usage. Chapter 1, "Configuration Switch Settings, " on page 7 lists the switch descriptions and factory default settings. The location of the DIP switches are shown in Figure 1 on page 2. Mic Kill DIP Switch (DIP Switch 1) Audiocom master stations can transmit an inaudible signal to turn off the microphones in all remote intercom stations (including WM1000/2000) on an intercom channel. This is useful when a remote intercom station has been left unattended with the microphone on. This local power supply is located with the intercom station and provides power for that station only. Since power loss on the intercom lines is no longer an 8 issue, the operating range is now limited only by 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 this and automatically disconnects from the phantom power supply. As long as an Audiocom power supply is located somewhere in the intercom system, the proper terminating impedance is supplied to all stations. All Locally Powered Intercom Stations (Dry Lines) If all intercom stations are widely distributed, you can dispense with a main power supply and use local power for each station. When no power is delivered on the intercom channels, this is known as dry-line operation. Slowly increase the volume to maximum while talking into the microphone. Using a small, flathead screwdriver, adjust the channel 1 sidetone trimmer (Figure 1 on page 2) to minimize you voice level in the headphones For the WM2000 only, activate channel 2 and repeat 2 through 4 to adjust channel 2 sidetone. Install the intercom station mounting screws after completing the adjustments. The station is now ready for use. 10 . FIGURE 2. [. . . ] In isolate mode, one string of intercom stations is operated as channel one, and the other string is operated at channel two. There is no communication between the separate channels, and the total current per channel is 1 amp. For WM1000 connection details, refer to Figure 6. 12 FIGURE 4. A two-channel intercom system using two PS2001L power supplies. Each PS2001L is set to combine mode and it supplies power to one intercom channel only. [. . . ]