Pin Function Description
10 FLT_A+ (12 V) This is the voltage supply for EEH from power supply or bat-
tery
5.5.2
SIM Interface
Table 54: SIM Interface – Pins
Pin Type Description
1 SIM TxD RS232
2 Ethernet TX+
3 Ethernet TX-
4 Ethernet RX+
5 SIM SIM Detect
6 SIM GND
7 Ethernet RX-
8 SIM RxD RS232
9 SIM SIM Reset
10 SIM +12V
5.5.3
9-Pin subD Connector
The pin assignment of this 9-pin subD connector follows the requirements of an RS232 standard
interface with the RS232 voltage level. The cable (see section “Connecting Cables”) which has to be
used is a standardized serial interface cable which allows to connect a data device with an RS232
Interface such as PC, Laptop, Console.
Table 55: 9–Pin subD Connector Pins
Pin Function Description PC Direction
1 DCD Data Carrier Detect Input
2 RXD Received Data Serial Serial IN
3 TXD Transmitted Data Serial OUT
4 DTR Data Terminal Ready Output
5 GND Ground Output Output
6 DSR Data Set Ready Input
7 RTS Request to Send Output
8 CTS Clear to Send Input
9 RI Ring Indicator Input
68015000553-KC
Chapter 5: Connectors and PIN Assignment
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