
IMP-400UHD Command Guide
6
2 Specification and Setup of Communication
2.1 RS-232C communication
2.1.1 RS-232C connector specification
Connect the RS-232C cable to the provided 3-pin terminal block, and then insert it to the RS-232C connector.
AWG28 to AWG16 conductor gauge is recommended for optimal performance.
The recommended wire strip length is 7 mm/0.28 inch.
If connecting to the D-sub9, please short RTS, CTS, DTR, and DSR.
Tx
Rx
GND
RS-232C Tx
RS-232C Rx
GND
Up to 0.28 in. (7 mm)
[Figure 2.1] Connecting RS-232C cable to 3-pin terminal block connector
2.1.2 RS-232C communication specification
[Table 2.1] RS-232C specification
Standard
RS-232C
Baud rate [bps]
4800 / 9600 / 19200 / 38400 [bps]
Data bit length [bit]
7 / 8
Parity check
NONE, EVEN, ODD
Stop bit [bit]
1 / 2
X parameter
Invalid
Flow control
None
Delimiter
CR LF (Carriage return and line feed, 0D and 0A in hex)
Communication method
Full duplex