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Telex EMS-4001 manual

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Table of contents for the manual

  • Page 1

    1 User Instructions 9350-7713-000 Rev . B, 3/2005 Model EMS-4001 Exp ansion Master St ation Audiocom ® Intercom Systems[...]

  • Page 2

    2 FCC S t atement 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 r[...]

  • Page 3

    3 T able of Contents Description ................................................................................ 4 Featur es ..................................................................................... 4 Installation ................................................................................. 5 Unpacking .............................[...]

  • Page 4

    4 Description The EMS-4001 adds four powered intercom channels to an MS-2001 Master Station, and it provides talk, listen and call buttons for the added channels. Up to four EMS-4001 Expansion Master Stations may be connected to the MS- 2001 to add up to 16 channels (18 channels total). The MS-2001 microphone is used to talkback to the EMS-4001 cha[...]

  • Page 5

    5 9. Program Inputs Connector and T rimmers : Each intercom channel has its own program input and level adjust trimmer . For each program input, there is an internal jumper which routes the program either to the intercom channel only , or to both the intercom channel and the MS-2001 headset or speaker (default setting). Additionally , the program s[...]

  • Page 6

    6 W ARNING The following instructions are for use by qualified personnel only . T o avoid electric shock, do not remove the cover unless you are qualified to do so. A VERTISSMENT Les instructions qui suivent s’adressent uniquement a un technicien qualifie. Pour evite des chocs electriques, ne p as ouvrir le boitier , a moins d’y habilite. Confi[...]

  • Page 7

    7 T able 1 - EMS-4001 configuration switch settings.[...]

  • Page 8

    8 Mounting Configurations The EMS-4001 mounts in a standard 19 inch equipment rack and is 1 rack unit high. Install the two supplied rack mount cosmetic covers when installing the EMS-4001 in the rack. When rack mounting components, you may not be able to access the sidetone trimmers after the components have been mounted. In this case, you can pos[...]

  • Page 9

    9 Figure 3 - Example of EMS-4001 in a system. Power-Up Plug in the power cord. The EMS-4001 channels power -up identically to channels one and two of the MS-2001. Refer to the MS-2001 User Instructions for all power-up information. The MS-2001 and EMS-4001 can be powered up in any order . Sidetone Adjustment s Use the sidetone adjustment procedure [...]

  • Page 10

    10 Operation The EMS-4001 channels operate identically to channels one and two of the MS-2001. Refer to the MS-2001 User Instructions for all operating information. S pecifications General Input and Output Power: AC Input: 100-240 V AC, 50/60 Hz Channel Power (each channel): 24 ±1 VDC, 2 A Dimensions: 1.75” (44.5 mm) high, 19” (483 mm) wide, 1[...]

  • Page 11

    11 Call Signaling: Send: 20 kHz ±100 Hz, 0.5 V rms ±10% Receive: 20 kHz ±800Hz, 100 mV rms Mic-Kill Frequency: Send: 24 kHz ±100 Hz, 0.5 V rms ±10% Receive: 24 kHz ±800 Hz, 100 mV rms Noise Contribution: less than -70 dB Common Mode Rejection Ratio: greater than 50 dB Connector type: One XLR-3M for each channel Balanced Configuration Pinouts [...]