Shure ALM User manual
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MODEL NUMBER |
CONNECTOR |
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ALM CORD DATA SHEETS
ALM Cords
Shure ALM cords use a common connector and wiring configuration on the microphone end, with varying connectors and wiring configurations on the radio end. The most basic configuration is model ALM-1, which has no connector on the radio end.
Some ALM cord models are made by taking an ALM-1 and adding a connector on the radio end. Depending on the radio involved, the connector:
–may have been a commercially-available part
–may have been assembled by Shure from commercially-available parts
–may have been a custom part obtained directly from the radio manufacturer, or
–may have been custom-manufactured by Shure or a contracted vendor according to the radio manufacturer’s specifications.
This means that replacement connectors may or may not be readily available, or may not be available under a single part number.
In some cases, the radio-end connector is molded onto the cable. This is usually done by sending ALM-1 cords to the connector vendor and having them assemble and mold the connector. These connectors are generally not repairable or replaceable without the necessary tooling and machinery. This has been noted on the cord data sheet where applicable.
Instruction Tags
Some ALM cords are shipped with an instruction tag attached, which contains information on required modifications to the microphone or radio that apply in certain situations. Note that the same instruction tag often ships with more than one ALM cord.
GENERAL
SPECIFCATIONS
FOR ALM CORDS
GENERAL SPECIFICATIONS:
1.DESCRIPTION
FIVE-CONDUCTOR, ONE CONDUCTOR SHIELDED, ONE DRAIN WIRE MICROPHONE CABLE
2.OUTER JACKET
BLACK NEOPRENE
OVERALL DIAMETER (INCHES) .195 +/- .010
3.CONDUCTORS
1.FOUR UNSHIELDED CONDUCTORS
1.COLOR CODE
YELLOW, BLUE, RED, AND BLACK
2.MATERIAL
STRANDED TINNED COPPER WIRE CINSISTING OF 7 STRANDS OF #34 AWG WIRE (#26 TOTAL GAUGE)
3.INSULATION
POLYPROPYLENE TO A DIAMETER OF .035 NOMINAL
2.ONE SHIELDED CONDUCTOR
1.COLOR CODE WHITE
2.MATERIAL
STRANDED TINNED COPPER WIRE CINSISTING OF 7 STRANDS OF #34 AWG WIRE (#26 TOTAL GAUGE)
3.SHIELD
#38 AWG TINNED COPPER WIRE WOUND OVER WHITE CONDUCTOR ONLY
3.DRAIN WIRE
#22 AWG (26 STRANDS OF #36 AWG TINNED SOFT COPPER)
4.INNER CABLE COVERING MYLAR SPIRAL WRAP
4.CONNECTOR (MICROPHONE END)
1.SIX-PIN MODULAR RJ-11 PLUG, WITH NEOPRENE FLEX RELIEF BOOT (Note: Data sheets for many Shure Modulink communications microphones show an 8-pin connector in the microphone, but only the middle 6 pins are used.)
2.WIRING SCHEME
PIN 1 = RED PIN 2 = YELLOW PIN 3 = BLUE PIN 4 = BLACK PIN 5 = WHITE PIN 6 = DRAIN
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MODEL NUMBER |
CONNECTOR |
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ALM-1 |
UNTERMINATED |
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MICROPHONE END: |
RADIO END: |
6-PIN MODULAR RJ-11 PLUG |
BARE WIRES |
WITH NEOPRENE FLEX RELIEF |
LENGTH:
~ 6 FEET EXTENDED
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
MODEL NUMBER |
CONNECTOR |
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ALM-2 |
5-PIN MOLDED |
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RECTANGULAR |
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CONNECTOR WIRING AT RADIO END |
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CONNECTOR TYPE: MOTOROLA RIGHT-ANGLE 5-PIN |
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MOLDED RECTANGULAR PLUG |
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NOTE: THIS CONNECTOR IS ASSEMBLED FROM |
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MOTOROLA COMPONENTS, AND THEN HAS A FLEX |
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RELIEF MOLDED OVER IT. CONNECTOR ASSEMBLY |
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REQUIRES SPECIAL EQUIPMENT. |
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CONNECTOR SHELL: MOTOROLA #14-84590B01 |
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TERMINALS: |
MOTOROLA #09-84151B03 |
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(5 req’d) |
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S-HOOK AND CLAMP: MOTOROLA #42A-893647 |
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CONNECTOR WIRING DETAIL
INSTRUCTION TAG
IMPORTANT INFORMATION!
CABLE AND CONNECTOR ASSEMBLY FOR
MODEL 590T, 885TT, AND 890TT
MICROPHONES
When using with 885TT or 890TT microphones, rewire radio for continuous microphone biasing. Refer to radio manufacturer’s service manual for additional information.
29A2127
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-3 |
MODULAR 6-PIN |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: RJ-45 MODULAR 6-PIN
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
BLUE |
PIN 2 NO CONNECTION (WHITE LEAD OCCUPYING |
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SLOT – NO CONTACT USED) |
PIN 3 |
YELLOW |
PIN 4 |
RED |
PIN 5 |
BLACK |
PIN 6 |
DRAIN |
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-4 |
5-PIN ROUND PLUG |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 5-PIN ROUND PLUG (SWITCHCRAFT PART SL-40-5M) NOTE: COUPLING RING AND INSULATOR (MANUFACTURED BY SHURE) ALSO REQUIRED
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
BLACK |
PIN 2 |
DRAIN |
PIN 3 |
RED |
PIN 4 |
YELLOW |
PIN 5 |
NO CONNECTION |
WHITE AND BLUE CONDUCTORS NOT USED
CONNECTOR END VIEW
CONNECTOR SIDE VIEW
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-5 |
4-PIN ROUND PLUG |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 4-SOCKET ROUND PLUG (FUJI
SEIMITSU PART FM14-4P)
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
RED |
PIN 2 |
BLACK & DRAIN |
PIN 3 |
NO CONNECTION |
PIN 4 |
YELLOW |
WHITE AND BLUE CONDUCTORS NOT USED
INSTRUCTION TAG
IMPORTANT INFORMATION!
CABLE AND CONNECTOR ASSEMBLY FOR
MODEL 590T, 885TT, AND 890TT
MICROPHONES
Change 270 ohm bias resistor in radio to 1200 ohms. Refer to Midland Service Manual for part location.
29B2127
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-6 |
5-PIN ROUND PLUG |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 5-PIN ROUND PLUG (SWITCHCRAFT PART# 12CL5M)
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
RED |
PIN 2 |
YELLOW |
PIN 3 DRAIN & BLACK |
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PIN 4 |
BLUE |
PIN 5 |
NO CONNECTION |
WHITE CONDUCTOR NOT USED
INSTRUCTION TAG 29C2127
INCLUDED WITH CABLE (could not be located)
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-8 |
MODULAR 8-PIN |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: RJ-45 MODULAR 8-PIN
CONNECTOR PIN ASSIGNMENTS:
PIN 1 NO CONNECTION (WHITE LEAD OCCUPYING
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SLOT; NO CONTACT USED) |
PIN 2 |
DRAIN |
PIN 3 |
RED |
PIN 4 |
BLUE |
PIN 5 |
YELLOW |
PIN 6 NO CONNECTION (BLACK LEAD OCCUPYING
SLOT; NO CONTACT USED)
PIN 7 NO CONNECTION (NO CONTACT USED)
PIN 8 NO CONNECTION (NO CONTACT USED)
CONNECTOR WIRING DETAIL (LOCKING TAB ON REVERSE SIDE)
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-10 |
FLAT PC HEADER |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: FLAT PC HEADER 8-PIN MOLEX #2139
(CONNECTOR HOUSING AND PINS SOLD SEPERATELY)
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
BLACK |
PIN 2 |
YELLOW |
PIN 3 DRAIN & BLUE |
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PIN 4 |
RED |
PIN 5 |
NO CONNECTION |
PIN 6 |
NO CONNECTION |
PIN 7 |
NO CONNECTION |
PIN 8 |
NO CONNECTION |
WHITE CONDUCTOR NOT USED
APPROXIMATE CABLE TERMINATION
CONNECTOR WIRING DETAIL
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-11 |
FLAT PC HEADER |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: FLAT PC HEADER 8-PIN MOLEX #2139
(CONNECTOR HOUSING AND PINS SOLD SEPERATELY)
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
NO CONNECTION |
PIN 2 |
YELLOW |
PIN 3 |
BLACK |
PIN 4 |
RED |
PIN 5 DRAIN & BLUE |
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PIN 6 |
NO CONNECTION |
PIN 7 |
NO CONNECTION |
PIN 8 |
NO CONNECTION |
WHITE CONDUCTOR NOT USED
APPROXIMATE CABLE TERMINATION
CONNECTOR WIRING DETAIL
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-12A |
5-PIN ROUND PLUG |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 5-PIN ROUND PLUG (SWITCHCRAFT PART# 12CL5M)
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
RED |
PIN 2 DRAIN & BLACK |
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PIN 3 |
YELLOW |
PIN 4 |
WHITE |
PIN 5 |
BLUE |
INSTRUCTION TAG
IMPORTANT INFORMATION!
CABLE AND CONNECTOR ASSEMBLY FOR
MODEL 590T, 885TT, AND 890TT
MICROPHONES
When using early production 885TT or 890TT microphones, red jumper from D-E (W301) must be removed. In later production units, the red jumper D-E (W301) is moved to location F-G (W309), per data sheet instructions. (No modification required for Model 590T microphone.)
29F2127
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-16 |
5-PIN ROUND PLUG |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 5-PIN ROUND PLUG (SWITCHCRAFT PART# 12CL5M)
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
WHITE |
PIN 2 |
YELLOW |
PIN 3 DRAIN & BLACK |
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PIN 4 |
BLUE |
PIN 5 |
RED |
INSTRUCTION TAG
IMPORTANT INFORMATION!
CABLE AND CONNECTOR ASSEMBLY FOR
MODEL 590T, 885TT, AND 890TT
MICROPHONES
When using early production 885TT or 890TT microphones, red jumper from D-E (W301) must be removed. In later production units, red jumper D-E (W301) is moved to location F-G (W309), per data sheet instructions. (No modification required for Model 590T microphone.)
Install option jumper in radio per E.F. Johnson service manual to provide +13.8 VDC on pin 3.
29D2127
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-17 |
6-PIN SQUARE |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 6-PIN SQUARE RIGHT-ANGLE PLUG WITH THUMBSCREW (MANUFACTURED BY SHURE; NOT AVAILABLE AS A SINGLE ASSEMBLY)
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
DRAIN |
PIN 2 |
RED |
PIN 3 |
YELLOW |
PIN 4 |
NO CONNECTION |
PIN 5 |
BLACK |
PIN 6 |
NO CONNECTION |
WHITE, BLUE, AND SHIELD
CONDUCTORS ARE NOT USED
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-18 |
MODULAR 8-PIN |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: RJ-45 MODULAR 8-PIN
CONNECTOR PIN ASSIGNMENTS:
PIN 1 NO CONNECTION (BLACK LEAD OCCUPYING
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SLOT; NO CONTACT USED) |
PIN 2 |
DRAIN |
PIN 3 |
WHITE |
PIN 4 |
BLUE |
PIN 5 |
YELLOW |
PIN 6 |
RED |
PIN 7 |
NO CONNECTION |
PIN 8 NO CONNECTION (NO CONTACT USED)
CONNECTOR WIRING DETAIL (LOCKING TAB ON REVERSE SIDE)
INSTRUCTION TAG
IMPORTANT INFORMATION!
CABLE AND CONNECTOR ASSEMBLY FOR
MODEL 590T, 885TT, AND 890TT
MICROPHONES
When using early production 885TT or 890TT microphones, red jumper from D-E (W301) must be removed. In later production units, red jumper D-E (W301) is moved to location F-G (W309), per data sheet instructions. (No modification required for Model 590T microphone.)
Install option jumper in radio per E.F. Johnson service manual to provide +13.8 VDC on pin 3.
29D2127
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-19 |
DB-9 PLUG |
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CONNECTOR WIRING AT RADIO END |
CONNECTOR PIN ASSIGNMENTS: |
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CONNECTOR TYPE: RIGHT-ANGLE DB-9 PLUG |
PIN 1 |
--- |
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PIN 2 |
YELLOW |
NOTE: THIS CONNECTOR IS |
PIN 3 |
--- |
MOLDED ONTO THE CABLE BY |
PIN 4 |
RED |
THE VENDOR, AND CANNOT BE |
PIN 5 |
--- |
INSTALLED WITHOUT SPECIAL |
PIN 6 |
BLUE |
EQUIPMENT |
PIN 7 |
--- |
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PIN 8 |
BLACK |
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PIN 9 |
DRAIN |
WHITE CONDUCTOR NOT USED
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-20 |
4-PIN ROUND |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 4-PIN ROUND PLUG
CONNECTOR PIN ASSIGNMENTS:
PIN 1 |
RED |
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PIN 2 |
DRAIN |
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PIN 3 |
YELLOW |
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PIN 4 |
NO CONNECTION |
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SHELL/CLAMP |
BLACK |
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STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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MODEL NUMBER |
CONNECTOR |
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ALM-22 |
6-PIN MOLDED R.A. |
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CONNECTOR WIRING AT RADIO END
CONNECTOR TYPE: 6-PIN RIGHT-ANGLE MOLDED PLUG (MOTOROLA PART # 09-D80218J01)
NOTE: CONNECTOR IS MOLDED ONTO CABLE, AND
CANNOT BE INSTALLED WITHOUT SPECIAL EQUIPMENT
STANDARD MICROPHONE-END CONNECTOR WIRING
AND WIRE FUNCTIONS FOR ALL MODULINK CABLES
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RED |
AMPLIFIED AUDIO OUTPUT, AND |
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DC BIAS VOLTAGE INPUT |
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WHITE |
NON-AMPLIFIED AUDIO OUTPUT |
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YELLOW |
PTT SWITCH |
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BLACK |
PTT SWITCH GROUND |
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BLUE |
HANG-UP BUTTON |
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DRAIN |
GROUND |
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(LOCKING TAB ON REVERSE SIDE)
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