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Series 3100
| The Series 3100 Communication System is a modular system designed to allow maximum flexibility and still meet the design criteria of most headset intercom applications. When voice communications are necessary, but loud background noise, isolated locations or distance make it virtually impossible to communicate, the Series 3100 System can provide the solution. The system described below is flexible, low cost and versatile enough for even complex intercom requirements. The Series 3100 System is easy to install as all the electronic modules are designed for standard electrical outlet boxes and audio rack mounting. Series 3100 Communication System must include the following components:
These components can be used in a variety of combinations to form a complete Series 3100 Communication System tailored to suit your system requirements Typical Applications for the Series 3100 include:
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| M3111 Power Supply |
M3115 Power Control Module |
M3116 Power Control Module |
M3131 Power Amplifier |
| A well regulated power supply designed for intercom use. Regulated by integrated circuitry with built-in short-circuit protection. Contains system on/off switch. Uses two spaces in standard 2-3/4" deep electrical outlet box. Specifications: Input: 110 / 220 VAC, 50 - 60 Hz Output: 24 VDC Max Current: 0.5 amp Output Ripple: 25 milivolts, peak to peak |
Serves as power control switch and regulator for intercom system between 12 VDC power source and system power amplifier. Output fused with 0.5 amp fuse. Has system on/off switch. The only headset station that can be used with this module is Model M3145. Not to be used for over 10 headset stations. When this module is used, every headset must have PTT switch. Uses one space in standard 1-3/4" deep electrical box. (Do no use when power source is connected to battery charger) Specifications: Input: 12 VDC nominal Output: 0.5 amp |
Serves as power control switch and regulator between 24 VDC power source and system power amplifier. Output fused with 0.5 amp fuse. Has system on/off switch. Uses one space in standard 1-3/4" deep electrical box. Can be used for up to 32 headset stations. (Do not use when power source is connected to battery charger. Specifications: Input: 24 VDC nominal Output: 0.5 amp |
Designed to drive up to 32 headset stations or belt stations. May also be used separately as paging amplifier for up to three 45 ohm speakers or equivalent. Has system volume control. Occupies one space in 2" deep standard electrical box. Specifications: Input: impedence 80,000 ohm min. Output: 2 watts @ 24 VDC and 16 ohm Gain: 32dB When used as a paging amplifier it provides 2 watts continuous power into a 16 ohm lead. |
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| M3141 Headset Station |
M3142 Headset Station |
M3145 Headset Station |
M3442 Headset Station |
| Provides interface between one headset and intercom system. Has individual earphone volume control. A compensating resistor must be added to power amplifier when this unit is used to maintain proper impedence in system. Maximum of 32 headset stations may be used in system. Contains microphone preamplifier. Occupies one space in 1-3/4" deep electrical box. | Contains same features and specifications as M3141 with the addition of push-to-page button. A compensating resistor must be added to power amplifier when this unit is used to maintain proper impedence in system. When this unit is used, an additional M3131 must be added to system to drive paging speakers. Occupies one space in 1-3/4" deep electrical box. | Provides interface between one headset and intercom system. A compensating resistor must be added to power amplifier when this unit is used to maintain proper impedence in system. This unit must be used when system operates on 12 VDC. Has individual earphone volume control. Occupies one space in 1-3/4" deep electrical box. | Two model U3410 Belt Stations may be connected. This is a passive module to be used when screw-on connectors (MS Type) are used to prevent accidental disconnect. When this module is used in system, model M3162 impedence control must be used. Does not have individual volume control. Occupies one space in 1-3/4" deep electrical box. |
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| M3146 Handset Station |
M3162 Impedence Control |
M3147 Balanced Line Module |
M3143 Summing Amplifier Headset Station |
| The M3146 Handset Station provides the interface between David Clark Communications System and Atlas / Soundolier Telephone Handset (Models WE-2A and WB-2A with Carbon Transmitters only). Used where headset is not a requirement or where telephone handset is preferred. Has terminal strip for connecting into communication system with lead wires to handset station. Occupies one space in 1-3/4" deep electrical box. | Has a switch selected resistor for matching number of belt stations connected to system. It optimizes circuit characteristics and ensures tha system will operated as designed. For use with Headset Station M3442. Occupies one space in 1-3/4" deep electrical box. | Balanced Line Module can be used to interface a tape recorder, radio or other sound source to the intercom system. Two balanced line modules may be used to substantially increase distance between headset stations or tie multiple intercom systems together. Occupies one space in 1-3/4" electrical box. Not for use with systems operating from 12V battery power source. | Model M3143 Summing Amplifier Headset Station provides interface between one headset and intercom system. Has individual earphone volume control. Allows connection of external audio source such as tape player, alarm or radio. Second audio source will only be heard through headset plugged into this station. Occupies one space in 1-3/4" deep electrical box. Not for use with systems operating from 12V battery power source. |
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| U3410 Belt Station |
C35-15 Push-To-Talk Assembly |
V3412 VOX Belt Station |
| Model U3410 Belt Station affords user mobility. It serves as a preamplifier and interfaces between headset and headset station. The U3410 Belt Station connects only to M3442 Headset Station. This unit features headset jack, individual earphone volume control, a push-to-talk or push-to-lock microphone buttonm belt clip, 12 foot cord with screw-on connector (MS Type) | 15 foot shielded, oil resistant cord with push-to-talk / push-to-lock switch on the assembly and Switcraft Jack SC#12B and Plug SC#298. Connector plug has locking threads to secure plug to headset station. | Model V3412 Belt Station serves as a preamplifier and interfaces between headset and headset station. The V3412 Belt Station connects only to M3442 Jack Station. This unit features adjustable squelch control for voice activated circuit, manual PTT override switch, headset jack, heaset listen level control, belt clip, 12 foot straight cord with MS connector. Speaking into the microphone on a headset activates the belt station, providing hands free operation |
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| C36-12 Extension Cords |
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| 12 foot shielded, oil resistant cord with Switchcraft Jack SC#133 and Plug SC#298. Can be used withthe C35-15 Push-To-Talk Assembly for additional length. Connector plug has locking threads to secure plug to headset station. | ||
| The choice for rugged, reliable communications in high noise environments. The Series 3300 Headsets feature David Clark Company's M-1/DC Noise Cancelling Microphone | ||
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| H3330 Headset / Microphone |
H3340 Headset / Microphone |
H3391 Headset / Microphone |
| Over the head style Microphone: M-1/DC Amplified Dynamic (nominal 100 ohms) Boom: Has four different adjustment points for perfect microphone placement. Can be rotated to position microphone on left for right side. Earphone: Light Weight Dynamic (nominal 300 ohm) wired in series Cord: 4-conductor, 28" Plug: 2P-1643 NRR: 24dB |
Designed to be worn with safety cap. Same specifications as H3330 | Single Ear. Same specifications as H3330 |
| Your choice when comfort is a priority. Series 3400 Headsets feature David Clark Company's M-7A Noise Cancelling Electret Microphone, fully flexible boom and silicone gel ear seals | ||
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| H3430 Headset / Microphone |
H3440 Headset / Microphone |
H3140 Headset / Microphone |
| Over the head style Microphone: M-7A Electret (nominal 50 ohm) Boom: Full flex for precise microphone positioning. Rotates for left or right side placement. Earphone: Lightweight Dynamic (nominal 300 ohm) wired in series. Cord: 4 conductor, 28" Plug: 2P-1643 NRR: 23dB |
Designed to be worn with safety cap. Same specifications as H3430 | Designed to be worn with safety cap. Microphone: Throat microphone amplified electret element (nominal 100 ohm) Earphone: Lightweight Dynamic (nominal 300 ohm) wired in series. Cord: 4 conductor, 28" Plug: 2P-1643 NRR: 23dB |
| H3441 Single Ear Version of H3440 (left earcup vented, no receiver H3051 Listen only version of H3330. NRR: 24dB H3061 Listen only version of H3340. NRR 23dB |
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