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Series 3800 Vehicle Intercom System

Series 3800 Vehicle Intercom Systems are engineered to solve the problem of communicating in high noise environments, especially those associated with emergency operations during call response and at the scene. They enable personnel on the apparatus to communicate clearly, without interference from vehicle noise, including sirens. They have the option of connecting to mobile radios, allowing all personnel to listen to the radio and selected stations to transmit over the radio.

Modular Design: Rugged and serviceable. Reduces costly downtime on installation or module replacement. Very cost effective.
Weather Tight: All system components are designed for use in severe weather. All modules are manufactured using rugged, heavy gauge polycarbonate (-80 degress F to +212 degrees F) housing with intergral mounting feet.
Industry Standard: In use by over 900 emergency service departments, the Series 3800 vehicle intercom system is an extremely versatile "workhorse" able to accommodate most vehicle and system design requirements.
Versatile: Can be installed on Fire Apparatus, Ambulances, Rescue Boats, Utility and Construction vehicles of all types. If it rolls, floats or flies...or not, David Clark Company has a solution to help you cope with high noise environments.

U3800
Master Station U3801
Remote Headset Station U3802
Remote Headset Station

The "heart" of the system. One each is required per system. The U3800 will accommodate two headsets and should be placed where radio transmit function is not required. Adjusts automatically for 12 or 24 volt VDC power source. Contains system on/off, master volume control, two headset jacks with listen level controls, power input connector and two remote output connectors. Draws less than 600 milliampere current.
Size: 8-1/4"L X 5-3/4"W X 4-3/4"D This simple headset station is used to expand the system, usually at the end of a series of headset stations. There are no output connectors to connect addtional modules. It has one headset jack and a listen level control. Use where radio transmit is not required.
Size: 3-1/4"L X 4-3/4"W X 3"D Expands the system beyond the master station. Contains one headset jack and listen level control, system input connector and two system output connectors. Provides a path for "daisy chaining" to addtional headset stations.
Size: 5-3/8"L X 4-1/4"W X 3"D

U3803
Remote Junction Module U3805
Radio Cord Junction Module U3806
Dual Headset Intercom Station

A passive module containing four identically wired connectors for expanding the number of headset stations utilized in the system. A U3803 may be added to the system whenever C38-XX Jumper Cords are to be interconnected.
Size: 5-1/4"L X 5-1/4"W X 2-3/8"D Recommended for systems utilizing two or more radio interface headset stations. It is a passive module that permits multiple Series 3800 Radio Interface Modules (a maximum of four) to be connected to one radio. The U3805 provides one output to a mobile radio, one primary input from a Series 3800 Radio Interface Module and three secondary inputs from Series 3800 Radio Interface Modules.
Size: 6-3/4"L X 5-1/4"W X 2-3/8"D Expands the system beyond the master station. Contains two headset jacks, each with listen level control, system input connector and two system output connectors. Provides a path for "daisy chaining" to addtional headset stations.
Size: 6-3/4"L X 4-1/4"W X 3-1/16"D

U3810
Radio Interface Module U3811
Radio Interface Module U3812
Dual Radio Interface Module

Adds the transmit and receive functions of a mobile radio to the David Clark Series 3800 intercom system. Use of this module is recommended for two or three person systems only. The U3810 has one radio push to talk (PTT) switch, one system input connection, one radio input connection and two connectors for optional remote PTT.
Size: 5-1/4"L X 5-1/4"W X 2-3/4"D Provides isolated radio transmit function for one headset and radio receive function for all users. Contains one radio PTT switch, one headset jack and listen level control, one system input connection and one radio input connection.
Size: 5-1/4"L X 3-5/8"W X 3-1/16"D Designed to connect two separate radios to a David Clark Series 3800 intercom system. The priority reception feature enables the user to select which radio's receive audio will have precedence simply by connecting the priority radio to the priority radio input connector. Contains one C38-XX system connector, two connectors for radio input (C3821), and two connectors for optional remote PTTs.
Size: 8-1/2"L X 5-3/4"W X 4-1/8"D
Note: All intercom traffic is transmitted when PTT is engaged.

U3813
Radio Interface Module (use with H7042 headset only) U3814
Multi Radio Interface Module U3815
Radio Interface Module

Is designed to combine the transmit/receive functions of a mobile radio with the David Clark Series 3800 intercom system. The U3813 contains one headset jack, one listen level control, one PTT switch, one radio input connector (C3821), two intercom connectors (C38-XX) and a remote PTT connector that allows the use of an optional Footswitch (40071G-04) or other remote PTTs.
Size: 7"L X 4-1/3"W X 3-1/8"D
Note: The U3813 Radio Interface Module and the U3817 Remote Headset Station are the only Series 3800 Modules that accept the H7042 Headset. The H7042 Headset is designed for use with certain older portable radios and requires a David Clark Company 7000 series adapter specific to the portable radio brand and model. Is designed to connect up to four radios to a David Clark Series 3800 intercom system. Contains one headset jack with listen level control, one radio volume control, one four position radio select switch, one radio PTT, four connectors for radio input (C3821), two system connectors (C38-XX), one connector for speaker cut out option, and one connector for optional C3023 Belt Station, Footswitch (40071G-04) or other remote PTT. A red LED indicator over the PTT switch will light, indicating transmission over the selected radio. Provides isolated radio transmit function for one headset and radio receive function for all users on the system.
Size: 8-1/2"L X 5-1/4"W X 3-1/8"D Combines the transmit/receive functions of a mobile radio with the David Clark series 3800 intercom system. This module has one headset jack with listen level control, one PTT switch, one radio input connector (C3821), two intercom connectors (C38-XX) and one connector allowing use of an optional Footswitch (40017G-04) or other remote PTT.
Size: 7"L X 4-1/3"W X 3-1/8"D

U3815A
Radio Interface Module U3816
Dual Radio Interface Headset Station U3817
Remote Headset Station (use with H7042 Headset only)

Same features as U3815, but remote PTT connection will accept 40017G-04 Footswitch or C3023 Belt Station.
Size: 7"L X 4-1/3"W X 3-1/8"D The standard choice when connecting the 3800 intercom system to two radios. Provides two connectors to mobile radios (C3821), two intercom system connections (C38-XX), one headset jack with listen level control, two radio receive level controls, two PTT switches and two remote PTT connections (corresponding to each of the mobile radios). The remote PTT connectors will accept C3023 Belt Stations or Footswitches (40071G-04).
Size: 8-1/2"L X 5-1/4"W X 3-1/8"D Expands the system beyond the master station. Contains one headset jack with listen level control, system input connector and two system output connectors. Provides a path for "daisy chaining" to additional headset stations.
Size: 5-3/8"L X 4-1/4"W X 3"D
Note: The U3813 Radio Interface Module and the U3817 Remote Headset Station are the only Series 3800 Modules that accept the H7042 Headset. The H7042 Headset is designed for use with certain older portable radios and requires a David Clark Company 7000 series adapter specific to the portable radio brand and model.

C3820
Power Cord C3821
Radio Cord C38-12, -25, -50, -75, -100
Jumper Cords

Connects U3800 to power source, 20 foot two conductor shielded cable with two socket MS connector. Power end has stripped and tinned conductors. Fuse Kit included. Connects radios to radio interface module. 21 foot, six conductor shielded cable with six pin MS connector. Radio end has stripped and tinned connectors. Connects modules and U3800. Four conductor shelded cable with four pin MS connectors on each end. (number after dash indicates length in feet)

C3019
Utility Radio Adapter 18352G-16
Connector Kit C3023
Belt Station

Provides interface between any David Clark Series 3000 Noise Attenuating Headset and most mobile radios. Ideal for radio interface at the pump panel. Has radio PTT switch and listen level control. A 15 foot (extended) coil cord allows increased mobility. Accepts C3019 Utility Radio Adapter. Use as penel or bulkhead mount. A Protector Cap (13238P-01) is recommended. Six conductor cable is available. (order per foot; P/N 09271P-13) Provides intercom and radio transmit capability. Has radio PTT switch and listen level control. May be used with U3814, U3815A, and U3816. A 15 foot (extended) coil cord allows increased mobility.

40071G-04
Footswitch 40107G-01
Radio Interface Adapter 40666G-01
Headset Adapter

May be used with U3813, U3814, U3815A and U3816 Use if adapting to a Motorola Spectra, Syntor X9000, or Maratrac w/A7 heads. Mates with five-pin connector 09227P-81 Allows 6000 and 4200 Series Headsets to be used with 3800 System Headset Stations. (exceptions: do not use with U3813 or U3817)

Series 3800 Vehicle Intercom System Representative Applications

H3432
Headset / Microphone H3492
Headset / Microphone H3442
Headset / Microphone

Over the head style

Microphone: Noise cancelling M-7A Electret (nominal 50 ohm)
Boom: Full flex for precise microphone positioning
Rotates 200 degrees for left or right side placement
Earphone: Lightweight dynamic (nominal 300 ohm) wired in series
Cord: Shielded 4-conductor, 5' coil
Plug: PJ-051
Microphone on/off button
NRR: 23dB
Single ear style

Microphone: Noise cancelling M-7A Electret (nominal 50 ohm)
Boom: Full flex for precise microphone positioning
Rotates 200 degrees for left or right side placement
Earphone: Lightweight dynamic (nominal 300 ohm) wired in series
Cord: Shielded 4-conductor, 5' coil
Plug: PJ-051
Microphone on/off button
Designed to be worn under helmets or safety caps

Microphone: Noise cancelling M-7A Electret (nominal 50 ohm)
Boom: Full flex for precise microphone positioning
Rotates 200 degrees for left or right side placement
Earphone: Lightweight dynamic (nominal 300 ohm) wired in series
Cord: Shielded 4-conductor, 5' coil
Plug: PJ-051
Microphone on/off button

H3441
Headset / Microphone H6040
Headset / Microphone H7042
Headset / Microphone

Single receiver, slotted dome. Designed to be worn under helmets or safety caps

Microphone: Noise cancelling M-7A Electret (nominal 50 ohm)
Boom: Full flex for precise microphone positioning
Rotates 200 degrees for left or right side placement
Earphone: Lightweight dynamic (nominal 300 ohm) wired in series
Cord: Shielded 4-conductor, 5' coil
Plug: PJ-051
Microphone on/off button

Microphone: Noise cancelling M-77 Electret
Boom: Full flex for precise microphone positioning. Can be positioned for left or right side microphone placement
Earphone: Lightweight dynamic (nominal 275 ohm) wired in parallel
Cord: Shielded 4 conductor, 36" straight
Plug: U-174/U

Note: If a series 6000 headset is to be integratedinto the 3800 system, an adapter, P/N 40666G-01 must be used. Not to be used with U3813 Radio Interface Module or U3817 Remote Headset Station
Designed to be worn under helmets or safety caps

Microphone: Dynamic Noise Cancelling M101/DC (nominal 7 ohm)
Boom: Has three different adjustment points for perfect microphone placement. Can be rotated to position microphone on left or right side
Earphone: Lightweight dynamic (nominal 19 ohm) wired in parallel
Cord: shielded 4-conductor, 5' coil
Plug: U-174/U

Note: If a headset compatible with portable radios is to be integrated into the 3800 System, the U3817 Remote Headset Station and the U3813 Radio Interface Module are the only Series 3800 modules that accept LOW IMPEDANCE HEADSETS!

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U3800 Master Station	U3801 Remote Headset Station	U3802 Remote Headset Station
The "heart" of the system. One each is required per system. The U3800 will accommodate two headsets and should be placed where radio transmit function is not required. Adjusts automatically for 12 or 24 volt VDC power source. Contains system on/off, master volume control, two headset jacks with listen level controls, power input connector and two remote output connectors. Draws less than 600 milliampere current. Size: 8-1/4"L X 5-3/4"W X 4-3/4"D	This simple headset station is used to expand the system, usually at the end of a series of headset stations. There are no output connectors to connect addtional modules. It has one headset jack and a listen level control. Use where radio transmit is not required. Size: 3-1/4"L X 4-3/4"W X 3"D	Expands the system beyond the master station. Contains one headset jack and listen level control, system input connector and two system output connectors. Provides a path for "daisy chaining" to addtional headset stations. Size: 5-3/8"L X 4-1/4"W X 3"D


U3803 Remote Junction Module	U3805 Radio Cord Junction Module	U3806 Dual Headset Intercom Station
A passive module containing four identically wired connectors for expanding the number of headset stations utilized in the system. A U3803 may be added to the system whenever C38-XX Jumper Cords are to be interconnected. Size: 5-1/4"L X 5-1/4"W X 2-3/8"D	Recommended for systems utilizing two or more radio interface headset stations. It is a passive module that permits multiple Series 3800 Radio Interface Modules (a maximum of four) to be connected to one radio. The U3805 provides one output to a mobile radio, one primary input from a Series 3800 Radio Interface Module and three secondary inputs from Series 3800 Radio Interface Modules. Size: 6-3/4"L X 5-1/4"W X 2-3/8"D	Expands the system beyond the master station. Contains two headset jacks, each with listen level control, system input connector and two system output connectors. Provides a path for "daisy chaining" to addtional headset stations. Size: 6-3/4"L X 4-1/4"W X 3-1/16"D


U3810 Radio Interface Module	U3811 Radio Interface Module	U3812 Dual Radio Interface Module
Adds the transmit and receive functions of a mobile radio to the David Clark Series 3800 intercom system. Use of this module is recommended for two or three person systems only. The U3810 has one radio push to talk (PTT) switch, one system input connection, one radio input connection and two connectors for optional remote PTT. Size: 5-1/4"L X 5-1/4"W X 2-3/4"D	Provides isolated radio transmit function for one headset and radio receive function for all users. Contains one radio PTT switch, one headset jack and listen level control, one system input connection and one radio input connection. Size: 5-1/4"L X 3-5/8"W X 3-1/16"D	Designed to connect two separate radios to a David Clark Series 3800 intercom system. The priority reception feature enables the user to select which radio's receive audio will have precedence simply by connecting the priority radio to the priority radio input connector. Contains one C38-XX system connector, two connectors for radio input (C3821), and two connectors for optional remote PTTs. Size: 8-1/2"L X 5-3/4"W X 4-1/8"D Note: All intercom traffic is transmitted when PTT is engaged.


U3813 Radio Interface Module (use with H7042 headset only)	U3814 Multi Radio Interface Module	U3815 Radio Interface Module
Is designed to combine the transmit/receive functions of a mobile radio with the David Clark Series 3800 intercom system. The U3813 contains one headset jack, one listen level control, one PTT switch, one radio input connector (C3821), two intercom connectors (C38-XX) and a remote PTT connector that allows the use of an optional Footswitch (40071G-04) or other remote PTTs. Size: 7"L X 4-1/3"W X 3-1/8"D Note: The U3813 Radio Interface Module and the U3817 Remote Headset Station are the only Series 3800 Modules that accept the H7042 Headset. The H7042 Headset is designed for use with certain older portable radios and requires a David Clark Company 7000 series adapter specific to the portable radio brand and model.	Is designed to connect up to four radios to a David Clark Series 3800 intercom system. Contains one headset jack with listen level control, one radio volume control, one four position radio select switch, one radio PTT, four connectors for radio input (C3821), two system connectors (C38-XX), one connector for speaker cut out option, and one connector for optional C3023 Belt Station, Footswitch (40071G-04) or other remote PTT. A red LED indicator over the PTT switch will light, indicating transmission over the selected radio. Provides isolated radio transmit function for one headset and radio receive function for all users on the system. Size: 8-1/2"L X 5-1/4"W X 3-1/8"D	Combines the transmit/receive functions of a mobile radio with the David Clark series 3800 intercom system. This module has one headset jack with listen level control, one PTT switch, one radio input connector (C3821), two intercom connectors (C38-XX) and one connector allowing use of an optional Footswitch (40017G-04) or other remote PTT. Size: 7"L X 4-1/3"W X 3-1/8"D


U3815A Radio Interface Module	U3816 Dual Radio Interface Headset Station	U3817 Remote Headset Station (use with H7042 Headset only)
Same features as U3815, but remote PTT connection will accept 40017G-04 Footswitch or C3023 Belt Station. Size: 7"L X 4-1/3"W X 3-1/8"D	The standard choice when connecting the 3800 intercom system to two radios. Provides two connectors to mobile radios (C3821), two intercom system connections (C38-XX), one headset jack with listen level control, two radio receive level controls, two PTT switches and two remote PTT connections (corresponding to each of the mobile radios). The remote PTT connectors will accept C3023 Belt Stations or Footswitches (40071G-04). Size: 8-1/2"L X 5-1/4"W X 3-1/8"D	Expands the system beyond the master station. Contains one headset jack with listen level control, system input connector and two system output connectors. Provides a path for "daisy chaining" to additional headset stations. Size: 5-3/8"L X 4-1/4"W X 3"D Note: The U3813 Radio Interface Module and the U3817 Remote Headset Station are the only Series 3800 Modules that accept the H7042 Headset. The H7042 Headset is designed for use with certain older portable radios and requires a David Clark Company 7000 series adapter specific to the portable radio brand and model.


C3820 Power Cord	C3821 Radio Cord	C38-12, -25, -50, -75, -100 Jumper Cords
Connects U3800 to power source, 20 foot two conductor shielded cable with two socket MS connector. Power end has stripped and tinned conductors. Fuse Kit included.	Connects radios to radio interface module. 21 foot, six conductor shielded cable with six pin MS connector. Radio end has stripped and tinned connectors.	Connects modules and U3800. Four conductor shelded cable with four pin MS connectors on each end. (number after dash indicates length in feet)


C3019 Utility Radio Adapter	18352G-16 Connector Kit	C3023 Belt Station
Provides interface between any David Clark Series 3000 Noise Attenuating Headset and most mobile radios. Ideal for radio interface at the pump panel. Has radio PTT switch and listen level control. A 15 foot (extended) coil cord allows increased mobility.	Accepts C3019 Utility Radio Adapter. Use as penel or bulkhead mount. A Protector Cap (13238P-01) is recommended. Six conductor cable is available. (order per foot; P/N 09271P-13)	Provides intercom and radio transmit capability. Has radio PTT switch and listen level control. May be used with U3814, U3815A, and U3816. A 15 foot (extended) coil cord allows increased mobility.


40071G-04 Footswitch	40107G-01 Radio Interface Adapter	40666G-01 Headset Adapter
May be used with U3813, U3814, U3815A and U3816	Use if adapting to a Motorola Spectra, Syntor X9000, or Maratrac w/A7 heads. Mates with five-pin connector 09227P-81	Allows 6000 and 4200 Series Headsets to be used with 3800 System Headset Stations. (exceptions: do not use with U3813 or U3817)


H3432 Headset / Microphone	H3492 Headset / Microphone	H3442 Headset / Microphone
Over the head style Microphone: Noise cancelling M-7A Electret (nominal 50 ohm) Boom: Full flex for precise microphone positioning Rotates 200 degrees for left or right side placement Earphone: Lightweight dynamic (nominal 300 ohm) wired in series Cord: Shielded 4-conductor, 5' coil Plug: PJ-051 Microphone on/off button NRR: 23dB	Single ear style Microphone: Noise cancelling M-7A Electret (nominal 50 ohm) Boom: Full flex for precise microphone positioning Rotates 200 degrees for left or right side placement Earphone: Lightweight dynamic (nominal 300 ohm) wired in series Cord: Shielded 4-conductor, 5' coil Plug: PJ-051 Microphone on/off button	Designed to be worn under helmets or safety caps Microphone: Noise cancelling M-7A Electret (nominal 50 ohm) Boom: Full flex for precise microphone positioning Rotates 200 degrees for left or right side placement Earphone: Lightweight dynamic (nominal 300 ohm) wired in series Cord: Shielded 4-conductor, 5' coil Plug: PJ-051 Microphone on/off button

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