ipVG Product Guide HeiTel by Xtralis
62 29794_00
IPCamera
For all cameras:
Manufacturer = Off; Model = not selected; IP adrress = not defined;
Generic "GET" command 1 = not defined;
Generic "GET" command 2 = not defined
13.1 Interface Specifications RS-232/485
The table below contains an overview of the most important features of interfaces RS-232 and RS-485
interfaces:
Function RS-232 / V.24 RS-485
Transmission type asymmetrical symmetrical
Minimum number of wires Unidirectional 2,
(bidirectional 3)
Bidirectional 2;
System responses are not be
processed
Maximum number of receivers (transmitter
and receiver)
2 32
Distance between first and last device 15 m 1,200 m
Terminating resistors no yes
Max. transmission rate 115,200 Bit/s 10 MBit/s
Transmitter permitted driver output voltage ± 25 V – 7…12 V
Driver output signal without load ± 15 V ± 6 V
Driver output signal with load ± 15 V ± 2 V
Driver load 3…7 KOhm 54 Ohm
Receiver input voltage ± 15 V – 7…12 V
Sensitivity ± 3 V ± 200 mV
Input resistance 3…7 KOhm 12 KOhm
Note: As technical properties of serial interface components vary, transmission rate and line length data
provided here constitute maximum limits.