RTS MCE-325 User Instructions
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RTS MCE-325 User Instructions

Programmable user station
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U
I
SER
NSTRUCTIONS
M
MCE-325
ODEL
P
U
S
ROGRAMMABLE
SER
TATION
Rev. 13
NOVEMBER/2013
F.01U.193.228

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Summary of Contents for RTS MCE-325

  • Page 1 NSTRUCTIONS MCE-325 ODEL ROGRAMMABLE TATION Rev. 13 NOVEMBER/2013 F.01U.193.228...
  • Page 2 MCE-325 Programmable User Station ROPRIETARY OTICE The product information and design disclosed herein were origi- nated by and are the property of Bosch Security Systems, Inc. Bosch reserves all patent, proprietary design, manufacturing, repro- duction, use and sales rights thereto, and to any article disclosed therein, except to the extent rights are expressly granted to others.

  • Page 3: Important Safety Instructions

    MCE-325 Programmable User Station Important Safety Instructions Read these instructions. Keep these instructions. Heed all warnings. Follow all instructions. Do not use this apparatus near water. Clean only with dry cloth. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
  • Page 4 MCE-325 Programmable User Station Bosch Security Systems, Inc. Rev. 13 F.01U.193.228 Technical Manual...

  • Page 5: Table Of Contents

    External Program Input ............................. 10 Speaker Output ..............................10 Auxiliary Connector ............................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 Connectors .................................
  • Page 6 MCE-325 Programmable User Station Mechanical Installation ..........................25 Electrical Installation ..........................27 AC Power and Fuse ............................27 Intercom Lines J8, J9, J10 ..........................27 General ................................27 Connector Pin Outs ............................27 4-wire Termination ............................28 Program Inputs, J14 and J15 .......................... 28 External Speaker, J27 .............................

  • Page 7: Description & Specifications

    MCS325 Modular Speaker, as a speaker station. It may be mounted in a console or equipment rack via optional mounting kits. The MCE-325 can be used with either 2-wire or 4-wire intercom lines, or a combination of both. In this manual and in the labeling on the MCE-325, references to CH 1, 2, 3, and 4 indicate 2-wire lines;...

  • Page 8: Front Panel Features

    (4) intercom channels. Additionally, users may wish to customize the identification of channels. With this in mind, a button kit has been supplied with the MCE-325 to allow you to customize the button labeling to suit your particular application.

  • Page 9: Connections, Inputs And Outputs

    Panel Microphone Jack The MCE-325 may be optionally fitted with a gooseneck panel microphone by removing the blanking plug located in the upper-right corner of the front panel. The panel microphone jack accepts specially made gooseneck microphones (MCP-90 series), which are available from RTS.

  • Page 10: Rear Panel Features

    (The 4-wire CH B input is connected at the auxiliary connector.) The MCE-325 presents a bridging impedance of 10,000Ω to the intercom line, and is designed for use with intercom lines having a 200Ω line terminating impedance. A 200Ω termination plug is supplied (connected to J10) to prevent channels three and four from oscillating when the MCE-325 is in 2-channel mode.

  • Page 11: Programming

    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 DC source connected at the Auxiliary (J22) connector on the rear panel. For information on changing the AC supply voltage configuration, or using DC power, see “Installation”...

  • Page 12: Mce-325 Specifications

    12 Description & Specifications MCE-325 Programmable User Station MCE-325 Specifications General Bridging Impedance (to line) ..........................10,000Ω typical Noise Contribution to 200 Ω Line............................-90dBu Call Signal Frequency ..........................20kHz, crystal controlled Talk-off Frequency ..........................24kHz, crystal controlled Microphone Preamplifier Maximum Voltage Gain ................................. 54dB Frequency Response..........................

  • Page 13: Mcs325 Specifications

    MCE-325 Programmable User Station Description & Specifications 13 MCS325 Specifications The MCS325 is designed for use with MCE-325, but may also be used as a general-purpose monitor for program material. Impedance ..............................8Ω (DCR5.5 to 7Ω) Power Rating..............................5W RMS continuous Sensitivity...................90dB ±2dB/2.83volts/one (1) meter on axis averaged over...
  • Page 14 14 Description & Specifications MCE-325 Programmable User Station A 4-channel, 2-wire configuration with two (2) channels used for IFB’s FIGURE 4. Configuration for one (1) or two (2) 2-wire channels and one (1) 4-wire channel FIGURE 5. Standard 2-channel, 4-wire configuration FIGURE 6.
  • Page 15 MCE-325 Programmable User Station Description & Specifications 15 Multiple interconnected stations in 4-channel, 2-wire configuration with two (2) channels used for IFB’s FIGURE 7. Multiple interconnected stations using one (1) 4-wire intercom channel and two (2) 2-wire channels for IFB’s FIGURE 8.
  • Page 16 16 Description & Specifications MCE-325 Programmable User Station A 4-channel, 2-wire configuration with two (2) channels used for IFB’s (shown with TELCO interface) FIGURE 9. Configuration for an ENG truck using one (1) 4-wire intercom channel and two (2) 2-wire IFB’s FIGURE 10.
  • Page 17 MCE-325 Programmable User Station Description & Specifications 17 MCE-325 button configurations FIGURE 11. Bosch Security Systems, Inc. Technical Manual F.01U.193.228 Rev. 13...
  • Page 18 18 Description & Specifications MCE-325 Programmable User Station Technical Manual Bosch Security Systems, Inc. F.01U.193.228 Rev. 13...

  • Page 19: Installation

    General Prior to installing the MCE-325, it may be necessary to change some of the internal programming to suit your particular application. Table 1 on page 21 and Table 2 on page 22 list the functions for the DIP switches and jumpers which are used for internal programming.
  • Page 20 20 Installation MCE-325 Programmable User Station Top cover removal FIGURE 12. Technical Manual Bosch Security Systems, Inc. F.01U.193.228 Rev. 13...

  • Page 21: Intercom Line Channel Configurations (Ds1-Ds3, J6, J7, J19, And J20)

    Intercom Line Channel Configurations (DS1-DS3, J6, J7, J19, and J20) The four (4) channels of the MCE-325 may be assigned to intercom lines in a variety of ways. Channel assignment is determined by the settings of DIP switches DS1 through DS3 and jumpers J6, J7, J19, and J20. There are six (6) possible intercom line configurations.
  • Page 22 22 Installation MCE-325 Programmable User Station Jumper Functions and Default Settings TABLE 2. Jumper Default Jumper Function Number Setting Assigns PROGRAM A input to 2-wire CH 3 or 4-wire CH B Not Assigned Not assigned: pins 2 & 3 shorted Assigned: pins 1 &...
  • Page 23 MCE-325 Programmable User Station Installation 23 Internal DIP switches, jumpers, and level trimmers FIGURE 13. Bosch Security Systems, Inc. Technical Manual F.01U.193.228 Rev. 13...

  • Page 24: Front Panel Setup Mode Lock-Out (Ds4)

    MCE-325 operator and a camera operator. When ISO mode is engaged, either talk, or talk and listen (depending on the setting of DS5) for all other channels connected to the MCE-325 is muted, and a private line is established between the MCE-325 operator and the camera operator.

  • Page 25: Program Assistant - Ifb Option (J4, J5, J16-J18)

    Balanced/Unbalanced Dynamic Microphone Selection (J24) The MCE-325 may be used with headsets having either a balanced or unbalanced dynamic microphone. The MCE-325 is pre- programmed for use with an unbalanced microphone by shorting J24 pins 1 and 2. For balanced microphones, remove the shorting jumper and reinstall it to short pins 2 and 3.
  • Page 26 26 Installation MCE-325 Programmable User Station Mounting Configurations FIGURE 14. Technical Manual Bosch Security Systems, Inc. F.01U.193.228 Rev. 13...

  • Page 27: Electrical Installation

    The Model MCE-325 is pre-wired for either 110 or 220 VAC operation, and the appropriate fuse is already installed. The MCE-325 uses a 0.5A Slo-Blo fuse for 110 volt operation, or a 0.25A Slo-Blow fuse for 220 volt operation. A fused external DC source may be used instead of AC power if desired.

  • Page 28: 4-Wire Termination

    Speaker minus Sleeve No connection CAUTION: Do not let either speaker lead contact ground. The MCE-325 provides a bridging-type speaker output. The external speaker is turned on and off by the front panel SPKR ON switch. Technical Manual Bosch Security Systems, Inc.

  • Page 29: Auxiliary Connector, J22

    2VDC.) There are no internal pull-up resistors on the CH 1 and CH 2 key outputs. These outputs float until externally loaded. The CH 3 and CH 4 key outputs may also be used to expand 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.

  • Page 30: Iso Connection

    Connect the 4-wire output of the VCP Control Panel to either a 4-wire input or a program input of the MCE- 325. Connect the logic contact output of the VCP Control Station to the ISO input of the MCE-325 (pin 12 of the auxiliary connector).

  • Page 31: External Dc Power Source

    Remote Speaker Mute Control When the MCE-325 is used with an external speaker, the speaker may be muted from a remote location. Applying a logic low signal to pin 25 of the auxiliary connector causes muting. Connect circuit common to pin 11.
  • Page 32 32 Installation MCE-325 Programmable User Station Technical Manual Bosch Security Systems, Inc. F.01U.193.228 Rev. 13...

  • Page 33: Operation

    When the station is operated in 4-channel mode, however, each 2-wire intercom line uses only one (1) channel selector button to control both talk and listen, and the MCE-325 is pre-programmed so a channel is activated for both talk and listen when the button is pressed.

  • Page 34: Panel Mic/Headset Mic Selection

    When the MCE-325 is used with 2-wire lines, the station operator’s voice signal is not only 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.

  • Page 35: Sending And Receiving Call Signals

    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.

  • Page 36: Submenus

    Channel ID The MCE-325 can be programmed so when someone is talking on an intercom channel, the corresponding listen button LED flickers as they talk to provide a visual indication of which channel is talking. The button’s LED indicates the selected mode as follows: Short LED blink: Channel ID disabled.

  • Page 37: Button Lock

    Long LED blink (90% on, 10% off) - Instant mic on. Reset To restore the original programming, do the following: Hold down the CH 1 talk button for about two (2) seconds while powering up the MCE-325. > Front panel control usage for the various intercom line configurations TABLE 12.
  • Page 38 Bosch Security Systems, Inc. 12000 Portland Avenue South Burnsville, MN 55337 U.S.A. www.boschcommunications.com...

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