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MCE-325 Programmable User Station

Operation  35

Bosch Security Systems, Inc.

Technical Manual

 F.01U.193.228

Rev. 13

Sending and Receiving Call Signals

To

 call a channel

, do the following:

1.

Press the 

CALL

 button.

The CALL LED flashes to indicate call signal ready.

2.

Press and hold the 

talk button

 for the channel to be called.

The call signal transmits as long as the talk button is held.

3.

When a response is received, release the

 talk button 

to turn off the call signal.

Receiving a call:

When there is an incoming call, the indicator LED above the appropriate channel selector button flashes.

Using the Talk-Off Feature

The Talk-Off feature deactivates the mic switches of all remote user stations on a selected channel. 

To 

use talk-off

, do the following:

1.

Press and release the 

CALL button three (3) times

 in rapid succession.

The CALL LED turns on to indicate talk-off signal ready.

2.

Momentarily press the 

talk button

 for the channel to be deactivated.

This causes the talk-off signal to be transmitted.

3.

Release the 

talk button

 to end the talk-off signal transmission.

Front Panel Programming

Activating Setup Mode

To

 activate setup mode

, do the following:

 >

Press and hold the 

CALL

 button for 5 seconds.

The TALK 1, LISTEN 1, TALK 2, LISTEN 2, PANEL MIC, SPKR ON, and MIC ON LEDs begin to flash. This is the 
main menu.

Menu Selection/Ending Setup

The submenu names are listed under the switches. 

1.

Press the 

desired switch

 to access the submenu. 

2.

Press the 

CALL button

 from a submenu to return to the main menu.

3.

Press the 

CALL button again 

to exit from the main menu to the operating mode.

NOTE:

If no submenu is selected from the main menu within 12 seconds after program mode activation, the 

programming mode times out, and the MCE-325 returns to normal operation. If a submenu is selected, 
however, the unit remains in programming mode until intentionally exited.

Содержание User Station MCE-325

Страница 1: ...F 01U 193 228 Rev 13 NOVEMBER 2013 USER INSTRUCTIONS MODEL MCE 325 PROGRAMMABLE USER STATION...

Страница 2: ...no expressed or implied warranty with respect to anything contained in this manual and shall not be held liable for any implied warranties of fitness for a particular application or for any indirect...

Страница 3: ...r your safety If the provided plug does not fit into your outlet consult an electrician for replacement of the obsolete outlet 10 Protect the power cord from being walked on or pinched particularly at...

Страница 4: ...Bosch Security Systems Inc Technical Manual F 01U 193 228 Rev 13 4 MCE 325 Programmable User Station...

Страница 5: ...nector 10 Programming 11 Power 11 Mounting Configuration 11 MCE 325 Specifications 12 General 12 Microphone Preamplifier 12 Headphone Amplifier 12 Speaker Amplifier 12 Power and Mechanical 12 Connecto...

Страница 6: ...rnal DC Power Source 31 Remote Speaker Mute Control 31 Front Panel Headset Connections 31 Headset Requirements 31 Headset Connections 31 OPERATION 33 General 33 Operating Instructions 33 Momentary Lat...

Страница 7: ...gure 10 Features Call Signaling Call signaling is accomplished using an inaudible 20kHz signal to activate a call indicator LED Remote Talk Off Active unattended remote station microphones may be deac...

Страница 8: ...ng to suit your particular application Figure 11 shows the available button caps as well as some typical button configurations NOTE The standard buttons are opaque As a result the front panel LEDs may...

Страница 9: ...ic headset 4 pin CARBon MIC HEADSET This connector accepts a standard 3 conductor inch phone plug The necessary phantom power is provided to power a carbon microphone or its electronic equivalent Pane...

Страница 10: ...325 is in 2 channel mode External Program Input Two 2 inch phone jacks are provided for external program input The station accepts line level balanced input The two 2 program inputs are mixed internal...

Страница 11: ...s provided in Operation on page 33 Power The MCE 325 is designed for local powering and is supplied ready for use with either 110 or 220 VAC but not both The unit may also be powered from an external...

Страница 12: ...Maximum Voltage Gain 30dB Frequency Response 100Hz to 8 000Hz 3dB Speaker Impedance 8 to 16 Output Power per Amplifier 5W into 8 Output Voltage Level 16Vp p Power and Mechanical Power Requirements 11...

Страница 13: ...ter on axis averaged over one 1 octave bands centered at 250Hz 500Hz 1kHz 2kHz 4kHz and 8kHz when enclosed in a sealed box of 1 3 liters volume Frequency Response 200Hz to 10kHz 4dB on 1 10 octave mea...

Страница 14: ...Security Systems Inc Technical Manual F 01U 193 228 Rev 13 FIGURE 4 A 4 channel 2 wire configuration with two 2 channels used for IFB s FIGURE 5 Configuration for one 1 or two 2 2 wire channels and o...

Страница 15: ...y Systems Inc Technical Manual F 01U 193 228 Rev 13 FIGURE 7 Multiple interconnected stations in 4 channel 2 wire configuration with two 2 channels used for IFB s FIGURE 8 Multiple interconnected stat...

Страница 16: ...sch Security Systems Inc Technical Manual F 01U 193 228 Rev 13 FIGURE 9 A 4 channel 2 wire configuration with two 2 channels used for IFB s shown with TELCO interface FIGURE 10 Configuration for an EN...

Страница 17: ...MCE 325 Programmable User Station Description Specifications 17 Bosch Security Systems Inc Technical Manual F 01U 193 228 Rev 13 FIGURE 11 MCE 325 button configurations...

Страница 18: ...18 Description Specifications MCE 325 Programmable User Station Bosch Security Systems Inc Technical Manual F 01U 193 228 Rev 13...

Страница 19: ...at the factory If your application requires settings different from the defaults you have to remove the top cover of the unit see Figure 12 on page 20 and make the required changes If you do change t...

Страница 20: ...20 Installation MCE 325 Programmable User Station Bosch Security Systems Inc Technical Manual F 01U 193 228 Rev 13 FIGURE 12 Top cover removal...

Страница 21: ...CH B output installed On Off DS3 2 channel mode Off a 4 channel mode On a The terms 2 channel and 4 channel mode apply only to 2 wire lines In 2 channel mode each 2 wire line uses two 2 channel select...

Страница 22: ...wire CH B output selected pins 1 2 shorted 2 wire operation J16 Assigns mono mix of the PROGRAM A and B inputs to the left headphone Not Assigned Pins 2 3 shorted Assigned Pins 1 2 shorted Assigned J...

Страница 23: ...MCE 325 Programmable User Station Installation 23 Bosch Security Systems Inc Technical Manual F 01U 193 228 Rev 13 FIGURE 13 Internal DIP switches jumpers and level trimmers...

Страница 24: ...k off feature only This feature is useful when an unattended user station with an activated microphone is introducing unnecessary noise into a line Dip switch DS7 enables disables this feature When re...

Страница 25: ...immer Adjustment R37 The headphone sidetone trimmer R37 adjusts the loudness of your own voice heard in your headset when the microphone is on and the speaker is off It does not affect the actual leve...

Страница 26: ...26 Installation MCE 325 Programmable User Station Bosch Security Systems Inc Technical Manual F 01U 193 228 Rev 13 FIGURE 14 Mounting Configurations...

Страница 27: ...wired for loop through connection to other intercom stations These connectors are used for connection of 2 wire line to channels one and two full duplex operation or for connections of 4 wire CH A ou...

Страница 28: ...15 The PROGRAM A and B inputs accept line level 0dBu nominal balanced audio The program inputs are connected using inch stereo phone plugs External Speaker J27 The SPEAKER OUTPUT jack provides a bridg...

Страница 29: ...xpand the IFB functions allowing any one 1 of several MCE 325 user stations to interrupt a single point program source and talk on the interrupted channel For example if one 1 MCE 325 is operating wit...

Страница 30: ...t connections are wired in parallel with the front panel dynamic headset connector therefore use only one 1 at a time In the headset connecting cable prevent coupling between the microphone and headph...

Страница 31: ...om a remote location Applying a logic low signal to pin 25 of the auxiliary connector causes muting Connect circuit common to pin 11 Front Panel Headset Connections Headset Requirements Use headphones...

Страница 32: ...32 Installation MCE 325 Programmable User Station Bosch Security Systems Inc Technical Manual F 01U 193 228 Rev 13...

Страница 33: ...he button turns off when released All other buttons are latching only press to activate press to release NOTE The latching action can be disabled through the front panel programming LED Indicators LED...

Страница 34: ...transmitted onto the intercom lines but also echoed back into the MCE 325 receive circuits This can result in acoustic feedback when the MCE 325 is used with an external speaker The sidetone nulling t...

Страница 35: ...CALL LED turns on to indicate talk off signal ready 2 Momentarily press the talk button for the channel to be deactivated This causes the talk off signal to be transmitted 3 Release the talk button to...

Страница 36: ...ector button one 1 or more times to select the desired type of operation as follows Short LED blink 50 on 50 off Button must be pressed to talk or listen default Long LED blink 90 on 10 off Listen is...

Страница 37: ...talk button one 1 or more times to select the desired type of operation as follows Short LED blink 50 on 50 off Instant mic off default Long LED blink 90 on 10 off Instant mic on Reset To restore the...

Страница 38: ...Bosch Security Systems Inc 12000 Portland Avenue South Burnsville MN 55337 U S A www boschcommunications com...

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