Specifications

23
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 SCMP
5 RX HI OPT 11 S RTN
6 MAN TEST 12 IGN
New External Connector for the Ultra Classic II CVC Pinblocks
Pin Designation/Function
1 Regulated 8 volts
3 ext. switched A+
enable
5 ext. spkr/mic enable
7 TX hi - on/off
9 T Data
11 R Data
2 Audio Ground
4 manual test
6 ignition / charger B+
8 RX hi
10 C Data
12 logic ground
Pinouts for Motorola series 2 and 3 transceivers 25 pin cable pin definitions
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 a
black 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.q. 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 tied low
places the telephone 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