C O N N E C T O R I N T E R F A C E S
Table 17
I/O connector (X103) pinout (Molex 15-pin board to the wire connector)
GPS antenna
The GPS antenna connector (X300) is a female 50
impedance-matching IPX connector. The GPS antenna
connector feeds 5 VDC out of the RF connector. Therefore, do not use passive antennas because they can short-
circuit the DC voltage output and damage the device. The maximum load for the 5 VDC feed is 50 mA.
TETRA antenna
The TETRA antenna connector (X831) is a 50
impedance-matching female MMBX connector.
PIN
SIGNAL
IN/OUT
VOLTAGE LEVEL
NOTES
1
5V
out
5 V
Max. current 200mA (see Note)
2
NC
Do not connect
3
GPS_FIX
out
TTL
GPS fix indicator signal, active high
4
GND
gnd
0 V
Ground
5
IN_SERVICE
out
TTL
In service indicator signal, active high
6
POWER_ON_IND out
TTL
Power on indicator signal, active high
7
GND
gnd
0 V
Ground
8
BSI
in
2.8 V
Battery size indicator fixed 30 k
s connector on PCB
9
OVERTEMP
out
TTL
Over temperature indicator signal, active high
10
GND
in/out
TTL
User configurable IO pin
11
IGS_TTL
in
TTL
Ignition (level sensitive)
12
MBUS
in/out
2.8 V
MBUS serial line, connect 560
pull-down resistor to BSI line to switch
MBUS from X901 to X103 (requires reset)
13
GND
gnd
0 V
Ground
14
FBUS_RX
in
2.8 V
FBUS receive data signal
15
FBUS_TX
out
2.8 V
FBUS transmit data signal
Note:
The current rating is the total allowed current provided by the DC-DC converter. If a 5 V current is
taken from both X102 and X103 connector, the maximum current is 100 mA /pin.
Содержание TDM880i
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