Specifications

August 2010
G4500 BLACKBOX PORTABLE OPERATIONAL MANUAL
32
The Hardware | Elspec
RS232 Interface
A standard DTE (Data Terminal Equipment) interface suitable for direct
communication with COM compatible interface, such as a standard PC serial
COM port
Description
Symbol
Pin no.
Data Carrier Detect
DCD
1
Receive Data (Serial data input)
RDx
2
Transmit Data (Serial data output)
TDx
3
Data Terminal Ready.
DTR
4
Signal ground
SG
5
Data ready state
DSR
6
Request to send
RTS
7
Clear to send
CTS
8
Ring Indicator
RI
9
Specifications
Maximum cable length
Up to 50 feet (15.2m)
Supported protocols
TTY mode (HyperTerminal, Telnet emulation)
MODBUS RTU GPS
Duplex
Full
Insulation
2kV
Suitable plug connec-
tor type
Industry standard D-Type 9 pins, Female
Default configuration
Baud rate: 19200, Data bits:8 , Parity: None, Stop
Bits:1
RS485/422 Interface
A standard RS485 (full duplex) or RS422 (half duplex) interface