Kramer VS-81HDxl, Руководство пользователя

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VS-81HDxl - Connecting the VS-81HDxl 13
Hardware flow control is not required for this unit. In the rare case where a
controller requires hardware flow control, short pin 1 to 7 and 8, and pin 4 to 6 on
the controller side.
Method B ( Figure 6 )
—Connect the RS-232 9-pin D-sub port on the unit via a
straight (flat) cable to the null-modem adapter, and connect the null-modem
adapter to the RS-232 9-pin D-sub port on the PC. The straight cable usually
contains all nine wires for a full connection of the D-sub connector. Because the
null-modem adapter (which already includes the flow control jumpering described
in Method A above) only requires pins 2, 3 and 5 to be connected, you are free to
decide whether to connect only these 3 pins or all 9 pins.
Figure 6: Straight Cable RS-232 Connection with a Null Modem Adapter
5.3 Connecting a PC or Controller to the RS-485 Port
You can operate the VS-81HDxl via the RS-485 port from a distance of up to
1200m (3900ft) using any device equipped with an RS-485 port (for example, a
PC). For successful communication, you must set the RS-485 machine number
and bus termination.
To connect a device with a RS-485 port to the VS-81HDxl :

Connect the A (+) pin on the RS-485 port of the PC to the A (+) pin on the
RS-485 port on the rear panel of the VS-81HDxl

Connect the B (
–) pin on the RS-485 port of the PC to the B (–) pin on the
RS-485 port on the rear panel of the VS-81HDxl

Connect the G pin on the RS-485 port of the PC to the G pin on the RS-485
port on the rear panel of the VS-81HDxl
1
2
6
3
7
4
8
5
9
to PC
Null-Modem
Adapter