TANGO55/
I
& TANGO56/
I
V
ERSION
1.03
4 HARDWARE INTERFACES
4.1 Interfaces on the TANGO55/i & TANGO56/i
Interface specifications
Interface A
4-pin Micro-Fit™ 3.0 Molex
Part number: 43045-0406 (Female)
Interface B
Standard RS232 serial interface
Interface C
Audio 8-pin RJ45, RS232 (Rx, Tx) serial interface
Interface D
GSM antenna interface with SMB or FME antenna connector.
Interface E
SIM card reader for small SIM cards (3V)
Interface F
LED’s for status indication
Table 8:
Interface specifications of the modems
Figure 1:
view of modem interfaces.
4.1.1 Interface A (4-pin connector, power supply)
Figure 2:
Pin out of 4-pin power supply connector (interface A)
Power input: 10,8....31,2 V DC
Pin number
Name
Wire-Colour
Functions
1
GND
Brown
DC power negative input
2
Mute
Green
Do not connect
3
IGN
Yellow
Ignition (connected to positive DC power)
4
POWER (+Vin)
White
DC power positive input
Table 9:
Description of modem power connector
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