Motorola HT-1000 Service Manual page 83

Universal Connector
Pin Numbers and Signal
Assignments
Universal Connector
Option Select
(OPT SEL) Definition
1
FROM P402
1
3
5
FROM P403
7
9
11
13
MODE # MODE
00 External PTT
01 External
Audio
10 Mandown
11 Normal
Operation
A MTVA
B "SMART"
SB9600
Accessory
C External RF
Modem/FAX
RF GROUND
2
RF HOT
OPTION SELECT 1
2
EXTERNAL SPEAKER
EXTERNAL MICROPHONE
4 OPTION B+
OPTION SELECT 2
6 SPEAKER COMMON
REQUEST TO SEND
8 GROUND
BUSY
10 CLEAR TO SEND
TRANSMIT DATA
12
MODE CONTROL
DATA
OPT SEL 1 OPT SEL 2
0 0
0 1
1 0
1 1
COMMENT
External Speaker
Fixed Audio Output
Level
Identifies SB9600
Accessory
Enables AUX TX
and Discriminator
Audio Output
61