System 90*s 32/16/8 Mode + Scan Head Cable Pinout Example
		- Description
		- J1 Connector
		- Black 22 Pin Connector
		- #1 Gray 22 Pin Connector
		- #2 Gray 22 Pin Connector
		- #1 Light Purple 22 Pin Connector
		- #2 Light Purple 22 Pin Connector
		- Blue 6 Pin Connector
	- Back to Cables
	- Syntor X Home
	- HOME

Here is a typical negative ground pinout for a System 90*s TRN4344A (8 mode select), HLN4298A (4 bank select, volume, squelch and power) and a HLN4290A (8 mode operator select non-priority scan) control head . This is a 32 mode control head and an 8 mode System 90*s operator select non-priority scan select with display. The pinout is for the radio connector J1, control head conectors 22 pin black, 22 pin gray #1, 22 pin gray #2, 22 pin light purple #1, 22 pin light purple #2 and 6 pin blue. There are also wires that just connect from one control head connector to another control head connector.

The 16 mode version of this control head using the HLN4296A or TRN4340A (2 bank select, volume, squelch and power) board instead of the HLN4298A (above), has the same wiring except Mode 5 on pin 3 of the 6 pin blue connector and its wire is not used. The jumper selections on the TRN4344A will also be different.

The 8 mode version of this control head using the TRN4395A (volume, squelch and power) board instead of the HLN4298A (above) has the same wiring except the 6 pin blue connector and its 3 wires are not used at all. The jumper selections on the TRN4344A will also be different.

Cable's J1 connector front view pin out (cable on left side).

J1 SYSTEM 90*s PINOUT
J1	22 pin BLACK	22 pin GRAY #1	22 pin GRAY #2	22 pin Lt. PURPLE #1	22 pin Lt. PURPLE #2	J1 DESCRIPTION
A						A+ (Red Wire)
B						A- (jumpered to J1 pins 8 and 10)
J1-1		11				Control Head Strobe
J1-2	16					Detected Audio
J1-3	20					Volume - Receiver Audio
J1-4	22					PTT
J1-5	14					PTT Reference
J1-6						Squelch Tail
J1-7						Securenet Modulation
J1-8			2			Switched B- (jumpered to J1 pins 10 and B)
J1-9						Switched B+ to Accessories
J1-10		2				Chassis (jumpered to J1 pins 8 & B)
J1-11		10				Mode 12
J1-12				3		Mode 5
J1-13				8		Mode 1
J1-14	21					Shield
J1-15			1			Switched B+
J1-16				11		Mode 6
J1-17				7		Mode 2
J1-18
J1-19		9				Mode 10
J1-20						Transmit Indicator
J1-21						Transmit Mode
J1-22	6					Speaker Audio Low
J1-23				10		Mode 7
J1-24				6		Mode 3
J1-25				2		Mode 4
J1-26		8				Mode 9
J1-27	11					Mic. High
J1-28	17					Squelch
J1-29				5		Mode 8
J1-30		7				Mode 11
J1-31					1	Channel Scan Enable {JU1 removed}
J1-32	4					PL/DPL Disable
J1-33		3				Display Enable {JU14 removed}
J1-34						Sidetone In
J1-35						EMS Mute
J1-36						Transmit DVP
J1-37	3					Speaker Audio High

• Important notice: If you have a HLN4760C Personality Board J1-33 is a DVP-XL line, not a Display Enable line. In this case JU14 should be installed and J1-33 should not be connected to anything except a DVP-XL control head (if you are using one) or to pin 7 of of the Black 22 pin connector (which is not connected inside the control head). Also jumper J21 should be in the A position. If it is in the B position then J1-5 becomes a DVP-XL line and it should only be connected to a DVP-XL control head. The example in the above table works with all other Personality Boards including the HLN4257 and TRN8861 which do not have jumper JU14.
• Sometimes a J1-34 Sidetone wire will be installed in a spare 22 pin connector that is not used and tied back to the cable. Sidetone is only hooked up inside the radio on "VXJ" models.

22 pin System 90*s connector rear view pin out.

BLACK 22 PIN CONNECTOR SYSTEM 90*s PINOUT (TRN4340A)
PIN #	22 pin GRAY #1	22 pin GRAY #2	22 pin Lt. PURPLE #1	22 pin Lt. PURPLE #2	6 pin BLUE	J1	DESCRIPTION
1	12						Switched B+
2							Hang Up Box Gnd.
3						37	Speaker Audio
4-15						32	PL/DPL Disable
5							N.C.
6-9						22	Speaker Audio Low
7							(Display Enable) {moved}
key
9-6	13						(Chassis)
10							(Shield)
11						27	Mic. High
12							A+ Unswitched  (Green Wire)
13							A+ Ignition Switch  (Orange Wire)
14						5	PTT Reference
15-4							Hang Up Box Switched
16						2	Detected Audio
17						28	Squelch
key
19-21							(Shield)
20						3	Volume - Receiver Audio
21-19						14	Shield
22						4	PTT

• N.C. - No connection.
• When two pin numbers are separated by a dash (i.e. 4-15) it indicates the circuit board the connector plugs into shorts these pins together. Because the shorts are provided by the circuit board, they are missing when the connector is removed and the radio may not function until all the connectors are correctly installed.

#1 GRAY 22 PIN CONNECTOR SYSTEM 90*s PINOUT (TRN4344A)
PIN #	22 pin BLACK	22 pin GRAY #2	22 pin Lt. PURPLE #1	22 pin Lt. PURPLE #2	6 pin BLUE	J1	DESCRIPTION
1-12		12					Switched B+
2-3-13		13					Switched B-, J1-10 Chassis
3-2-13						33	(Switched B-)
key
5
6
7-17						30	Mode 11
8-18						26	Mode 9
9-19						19	Mode 10
10-20						11	Mode 12
11-22						1	Control Head Strobe
12-1	1						(Switched B+)
13-2-3	9						(Switched B-)
key
15
16
17-7		7					(Mode 11)
18-8		8					(Mode 9)
19-9		9					(Mode 10)
20-10		10					(Mode 12)
21					4		Mode Strobe
22-11		11					(Control Head Strobe)

• Mode lines 9, 10, 11 and 12 could actually be wired directly to the #2 gray connector as this board does not use these mode lines. However, most cables still wire to these pins on the #1 gray connector.
• When two pin numbers are separated by a dash (i.e. 8-18) it indicates the circuit board the connector plugs into shorts these pins together. 2-3-13 indicates all three pins are shorted together by the circuit board. Because the shorts are provided by the circuit board, they are missing when the connector is removed and the radio may not function until all the connectors are correctly installed.
• Please note the mode lines, control head strobe and power lines have duplicate connections. These are used to daisy chain these lines to the gray #2 connector. Even more of these gray connectors can be daisy chained.

#2 GRAY 22 PIN CONNECTOR SYSTEM 90*s PINOUT (HLN4290A)
PIN #	22 pin BLACK	22 pin GRAY #1	22 pin Lt. PURPLE #1	22 pin Lt. PURPLE #2	6 pin BLUE	J1	DESCRIPTION
1-12						15	Switched B+
2-3-13						8	Switched B-, J1-10 Chassis
3-2-13							(Switched B-)
key
5
6-16
7-17		17					Mode 11
8-18		18					Mode 9
9-19		19					Mode 10
10-20		20					Mode 12
11-22		22					Control Head Strobe
12-1		1					(Switched B+)
13-2-3		2					(Switched B-)
key
15
16-6
17-7							(Mode 11)
18-8							(Mode 9)
19-9							(Mode 10)
20-10							(Mode 12)
21							Mode Strobe
22-11							(Control Head Strobe)

• Please note the mode lines, control head strobe and power lines have duplicate connections. These are used to daisy chain these lines to the gray #1 connector. Even more of these gray connectors can be daisy chained.

#1 Lt. PURPLE 22 PIN CONNECTOR SYSTEM 90*s PINOUT (TRN4344A)
PIN #	22 pin BLACK	22 pin GRAY # 1	22 pin GRAY # 2	22 pin Lt. PURPLE #2	6 pin BLUE	J1	DESCRIPTION
1
2-12						25	Mode 4
3-14						12	Mode 5
key
5-16						29	Mode 8
6-17						24	Mode 3
7-18						17	Mode 2
8-19						13	Mode 1
9
10-21						23	Mode 7
11-22						16	Mode 6
12-2				2			(Mode 4)
key
14-3				3			(Mode 5)
15
16-5				5			(Mode 8)
17-6				6			(Mode 3)
18-7				7			(Mode 2)
19-8				8			(Mode 1)
20
21-10				10			(Mode 7)
22-11				11			(Mode 6)

• When two pin numbers are separated by a dash (i.e. 8-19) it indicates the circuit board the connector plugs into shorts these pins together. Because the shorts are provided by the circuit board, they are missing when the connector is removed and the radio may not function until all the connectors are correctly installed.
• Please note the mode lines have duplicate connections. These are used to daisy chain these signals to additional System 90*s accessories (i.e. MPL select, operator non-priority scan select, etc.). Even more of these lt. purple connectors can be daisy chained.

#2 Lt. PURPLE 22 PIN CONNECTOR SYSTEM 90*s PINOUT (HLN4290A)
PIN #	22 pin BLACK	22 pin GRAY # 1	22 pin GRAY # 2	22 pin Lt. PURPLE #1	6 pin BLUE	J1	DESCRIPTION
1						31	Channel Scan Enable
2-12				12			Mode 4
3-14				14			Mode 5
key
5-16				16			Mode 8
6-17				17			Mode 3
7-18				18			Mode 2
8-19				19			Mode 1
9
10-21				21			Mode 7
11-22				22			Mode 6
12-2					1		(Mode 4)
key
14-3					3		(Mode 5)
15
16-5							(Mode 8)
17-6							(Mode 3)
18-7							(Mode 2)
19-8							(Mode 1)
20
21-10							(Mode 7)
22-11							(Mode 6)

• Please note the mode lines have duplicate connections. These are used to daisy chain these signals to additional System 90*s accessories (i.e. MPL select, operator non-priority scan select, etc.). Even more of these lt. purple connectors can be daisy chained.

6 pin System 90*s connector rear view pin out.

BLUE 6 PIN CONNECTOR SYSTEM 90*s PINOUT (TRN4340A)
PIN #	22 pin BLACK	22 pin GRAY #1	22 pin GRAY #2	22 pin Lt. PURPLE #1	22 pin Lt. PURPLE #2	J1	DESCRIPTION
1					12		Mode 4 {16* & 32 mode  control heads}
key
3					14		Mode 5 {32* mode control  heads}
4		21					Mode Strobe
5							DVP Audio In
6

• * - remember an 8 mode Talkaround control head is really a 16 mode control head and a 16 mode Talkaround control head is really a 32 mode control head.
• In some cases that are different from this example, when there is no Mode Strobe signal supplied by any other boards, a Ground is substituted for the Mode Strobe signal. The Mode Strobe signal is used to electronically disconnect the control head bank select diodes from mode lines 4 and 5 when other System 90*s boards are using these mode lines for other purposes.
• Radios that have DVP control heads use DVP Audio In instead of the Detected Audio on pin 16 of the 22 pin black connector.

• All of the yellow highlighted signals do not connect to the radio. They are external power hookups, interconnections between control head boards and accessories (i.e. the hangup box).
• When two pin numbers are separated by a dash (i.e. 14-3) it indicates the circuit board the connector plugs into shorts these pins together. 2-3-13 indicates all three pins are shorted together by the circuit board. Because the shorts are provided by the circuit board, they are missing when the connector is removed and the radio may not function until all the connectors are correctly installed.
• All boards must have their internal jumpers set correctly.

--

PL, Private Line, DPL, Digital Private Line, MPL, Talkaround, MDC-600, MDC-1200, MVS-20, Securenet, Smartnet, Privacy Plus, Trunked X2, Trunked X3, Touch Code, Quick Call II, Channel Scan, Talkback Scan, System 90, System 90*s, Systems 9000, Mitrek, Micor, Spectra, MataTrac, Syntor, Syntor X, Syntor X 9000 and Syntor X 9000E are trademarks of Motorola Inc.