Mode Select (Option1 And Option2; Accessory Connector Pin-Outs - Motorola TETRA MTH800 Basic Service Manual

B - 2

Mode Select (Option1 and Option2):

The following logic levels can be used to select the requested CE Bus mode:
MODE
NORMAL (no accessory)
USB Accessory/Computer
USB accessory / RS232 (6 wire)
Dumb Accessory
USB OTG
RS-232 (8 wire)/IDB Smart Cable
Bluetooth (RS-232 (4 wire) / SSI)
PTT
SB9600

Accessory Connector Pin-Outs

Pin No. Signal Name (Short Form)
1 Power Ground (GND)
2 Battery Feedback (BATT_FDBK) BATT_
3 External Power (EXTB+)
4 USB+/TXD (D+)
5 USB-/RXD (D-)
6 USB Power/Ignition/Send/End /
RTS (USB_PWR)
7 Switched Battery (SWB+)
8 Hook Switch / FM_DATA / CTS
(HKSW)
9 MUTE/FS/DCD (MUTE)
10 DUMB_SEL2/SCK/RI (DSEL2)
11 DUMB_SEL1 / FM_CLOCK
/SRDA / DTR (DSEL1)
12 DUMB_SEL0 / FM_EN / STDA/
DSR (DSEL0)
13 Option 1 (OPT1)
14 Option 2 (OPT2)
15 Audio Out On/Off (AUDIO_OUT) AUDIO_
16 Audio In (AUDIO_IN)
17 Audio Ground (AUDIO_GND)
Note: For additional information refer to the detailed service manual chapter: Theory of Operation.
MTH800 TETRA Handportable Terminal / Basic Service Manual
OPTION_1
1
1
1
1
1
0
0
0
Diode connected from Option 2 to 1
Power/
Default
States USB
GND GND
BATT_
FDBK FDBK
EXTB+ EXTB+
D+
D-
USB_
PWR
SWB+ SWB+
HKSW
DSCEN DSCEN
UPLink UPLink
DNLink DNLink
AUDIO_
OUT OUT
AUDIO_ AUDIO_
IN IN
AUDIO_ AUDIO_
GND GND
OPTION_2 USB_PWR
1
1
1
0
0
1
1
0
Bluetoot
USB h (RS232/ RS232
OTG SSI) (8 wire)
GND GND GND
BATT_ BATT_ BATT_
FDBK FDBK
FDBK
EXTB+ EXTB+ EXTB+
D+ TXD TXD
D- RXD RXD
USB_ RTS RTS
PWR
SWB+ SWB+ SWB+
CTS CTS
FS DCD
SCK RI
CABLE_ SRDA DTR
ID
DONGLE STDA DSR
OPT1 OPT1
OPT2 OPT2
AUDIO_ AUDIO_ AUDIO_
OUT OUT OUT
AUDIO_ AUDIO_ AUDIO_
IN IN IN
AUDIO_ AUDIO_ AUDIO_
GND GND GND
CONNECTOR PIN FUNCTIONS
AUDIO_IN
0 X
>4.0V 1
>4.0V 0
X 1
X 0
X 1
X 0
X X
X X
USB/
RS232
(6 wire) JTAG
GND GND
RTS BATT_
FDBK
EXTB+ EXTB+
D+ TDO
D- TDI
USB_ RESET_
PWR IN
SWB+ SWB+
CTS Mcu
_DE
DCD Dsp
_DE
TXD TCK
DTR TMS
RXD TRST
OPT1 OPT1
OPT2 OPT2
AUDIO_ AUDIO_
OUT OUT
AUDIO_ AUDIO_
IN IN
AUDIO_ AUDIO_
GND GND