Section 7 - Phone Pinouts

							       
Before going into the cable specs, here are the pin-outs to all phones as of
now (in the US).  A very special thanks go to Motorola for faxing me the new
Ultra Classic II pin-outs!



15 pin cable pinouts 

 PIN    DESIGNATION/FUNCTION
  1     Battery A+, red wire
  2     Transmit Audio / ON-OFF Function, a shared line between Audio (AC) and
	ground.  This line will toggle the ON/OFF status of the telephone.
  3     Ground (A+ return), black wire
  4     Ignition Sense Lead, green with a black tracer
  5     Receiver Audio (RX High), to handset connector pin 8
  6     Regulated +9.5 volts, to handset connector pin 2
  7     T-Data, one of the 3-wire bus lines, to handset connector pin 3
  8     C-Data, one of the 3-wire bus lines, to handset connector pin 4
  9     Digital Hands-Free Microphone / Manual Test.  When the pin is grounded,
	which can be done by shorting the two connectors of the Hands-Free
	microphone, the unit is enabled to work in TEST MODE.
  10    R-Data, one of the 3-wire bus lines, to handset connector pin 5
  11    Handset Logic Ground, to handset connector pin 1
  12    Speaker High \  
		      | -> Only on SKN4279A and SKN4277A
  13    Speaker Low  /
  14    Handset Audio Ground, to handset connector pin 6
  15    Auxiliary Alert, yellow lead with a black tracer, used to blow the horn
	or flash the headlights.  Provides a ground for the relay; maximum 
	current is 1/2 amp.  It is  *N O T*  recommended that this circuit be
	used to drive the horn or headlights directly.



25 pin cable pinouts (series 2 and 3 transceivers)

 PIN    DESIGNATION/FUNCTION
  1     Transmit Audio/ON - OFF Function
  2     Mobile/Transportable Select Line
  3     Ground (A + return), one of 2 black wires.  Both are required for proper
	operation
  4     Battery A +, one of 2 red wires. Both are required for proper operation.
  5     Ignition Sense Lead, green with red tracer
  6     Receiver audio to handset (RX High), pin 8 on the handset connector
  7     Ground
  8     Regulated +9.5 volts to handset, pin 2 on handset connector
  9     Ground
  10    Auxiliary Alert, yellow with black tracer, used to blow the horn or
	flash the headlights.  Provides a ground function. NOTE: 1/2 amps
	maximum current.  The recommended method is to drive a relay 
	(e.g. MOT 59K813674).  Ignition Sense, pin 5, must be low for this
	function to work.
  11    T-Data, one of the 3-wire bus lines, to pin 3 of the handset connector
  12    C-Data, one of the 3-wire bus lines, to pin 4 of the handset connector
  13    Ground
  14    Transmit Audio Shield
  15    Transmit Audio
  16    Battery A+, one of two red wires. Both are required for proper operation
  17    Ground, one of two black wires. Both are required for proper operation 
  18    R-Data, one of the 3-wire bus lines, to pin 5 of the handset connector
  19    Receiver audio to external speaker
  20    Ground for receiver audio (shield) to external speaker
  21    Manual test line.  When connected to ground, puts phone in test mode
  22    Ground
  23    Handset logic ground, to handset connector pin 1
  24    Handset audio ground, to handset connector pin 6
  25    Accessory ground, to external speaker



OEM 32 pin cable pinouts        16 15 14 13 12 11 10  9  8  7  6  5  4  3  2  1
				+----------------------------------------------+
Note: Looking into connector  C |*  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *| 
  on the transceiver with the  D |*  *  *  *  *  *  *  *  *  *  *  *  *  *  *  *|
  antenna port down.            +----------------------------------------------+

Pin#  Designation/Function Row C         Pin#  Designation/Function Row D
  1  Battery A+                            1  Not Used
  2  Ignition Sense                        2  Antenna Drive (for power antenna)
  3  Status Display Control                3  Not Used
  4  Not Used                              4  Auxiliary Alert, used to blow the
					      horn or flash the headlights 
					      through a relay
  5  Ground (A+ Return)                    5  Not Used
  6  GM Proprietary Serial Data Bus         6  GM proprietary serial bus
  7  Audio Ground, from GM Audio bus to    7  Audio Ground (not connected)
     telephone
  8  Low level audio, from telephone to GM 8  Low Level Audio (not connected)
     Audio bus
  9  Not used                              9  Manual Test Line; when grounded
					      this line enables TEST MODE
  10 Not used                              10 RX High
  11 Mobile / Transportable select line    11 Ground (TX Shield)
  12 Handset Logic Ground                  12 Regulated +9.5 volts
  13 T-Data, one of the 3-wire bus lines   13 C-Data, one of the 3-wire bus lines
  14 R-Data, one of the 3-wire bus lines   14 Audio Ground
  15 TX High / ON-OFF                      15 Ground (Rx Shield)
  16 VSP Microphone High                   16 VSP Microphone Ground



Pinouts for the Motorola 8000 brick phone - "N" series

 numbering starts on top left         1  2  3  *  4  5  6 
				      7  8  9  *  10 11 12
 PIN    SIGNAL
  *     GROUND
  1     logic ground
  2     not used
  3     audio in to phone
  4     audio out (and on/off toggle)
  5     4.75 Bias
  6     Manual test line
  7     Ground for audio signals (common)
  8     TRU data line
  9     not used
  10    CMP data line
  11    RTN data line
  12    ignition sense



CVC BLOCK

  1  2  3    4  5  6

  7  8  9   10 11 12

 1   VSP Enable        7   GROUND
 2   SPKR Enable       8   S TRU
 3   TX HI on/off      9   AUX Alert
 4   RX HI             10  S CMP
 5   RX HI OPT         11  S RTN
 6   MAN TEST          12  IGN



Flip Fones and all fones using the dpc/pt flip cable
						 
						   J3 Pin  Function
 1   2   3   4   5   6   7   8           + G -       1     Logic Ground
 |   |   |   |   |   |   |   |           | | |       2     Ext. 7.5V
						     3     TRU
						     4     CMP
  (looking at back of phone with battery removed)    5     RTN
						     6     Audio Ground
						     7     RX Audio OUT (spkr)
						     8     TX Audio IN (mic)



New External Connector for the Ultra Classic II CVC Pinblocks
		      \
		       \
			\
			 \
                      \      Pin   Designation/Function
\                          \
  +-------------------------+     1    Regulated 8 volts
  |     12 10  8  6  4  2   |     3    ext. switched A+ enable
  |      -  -  -  -  -  -   |     5    ext. spkr/mic enable
  | O                       |     7    TX hi - on/off
  |      -  -  -  -  -  -   |     9    T Data
\ |     11  9  7  5  3  1   |    11    R Data
  +-------------------------+
		   |              2    Audio Ground
	    PHONE /               4    manual test
				  6    ignition / charger B+
				  8    RX hi
				 10    C Data
				 12    logic ground