Speco DVR-X4IP Operating Instructions Manual page 43

. RS-232C Hex-codes table
Following ASCII-codes are for programmers who want to control the DVR via RS-232C port.
1 Byte ASCII-code.
MENU 'M'
PLAY 'P'
MODE 'D'
PANTILT 'T'
RS-485
Pin No. Definition
9 SD-
10 SD+
RS-232
Pin No. Definition
1 DCD
2 RxD
3 TxD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 NC
PIP/MARK 'I'
FRZ 'F'
SEQ/SPEED 'Q'
ZOOM 'Z'
Factory Default " 0 "
C o m m
1
6
RS-232C
43
CH1 '1' UP
CH2 '2' DN
CH3 '3' LEFT
CH4 '4' RIGHT
P o r t
5
9
'U'
'J'
'H'
'K'