Connecting the VP-81K 8x1 UXGA / Audio Switcher
13
6.3 Controlling via RS-485
You can control a
VP- K
unit via an RS-485 controller, for example, a PC
(equipped with an RS-485 interface) or a Master Programmable Remote
Control system such as the Kramer
RC-3000
.
To connect an
RC-3000
to a
VP- K
unit (see Figure 6):
1. Connect the RS-485 terminal block port on the
RC-3000
to the RS-485 port
on the
VP- K
unit, as follows:
Connect the “A” (+) PIN on the RS-485 rear panel port of the
RC-3000
to the “A” (+) PIN on the RS-485 rear panel port of the
VP-81K
unit
Connect the “B” (-) PIN on the RS-485 rear panel port of the
RC-3000
to the “B” (-) PIN on the RS-485 rear panel port of the
VP- K
unit
If shielded twisted pair cable is used, the shield may be connected to
the “G” (Ground) PIN on one of the units (for example, on the
RC-3000
)
2. Set the
VP- K
unit as Machine # 2, according to Table 4 (that is, DIP 1 and
DIP 2 OFF, and DIP 3 ON), and set RS-485 Line Termination ON
KEYBOARD EXTENSION
REMOTE CONTACT
RS-485
RS-232 IN
RS-232 OUT
12 VDC
1 2
1 2 3 4 5 6 7 8 G
4
6
8
10
3
5
7
9
11 12
14
16
O
UT
13
15
IN
RS-485 PINOUT
G
B
A
_
+
Figure 6: Controlling via RS-485 (for example, using an RC-3000)
