Connecting the VP-23N Presentation Switcher
17
6.4 Connecting via RS-485
You can control a
VP-23N
unit via an RS-485 controller, or a Master
Programmable Remote Control system such as the Kramer
RC-3000
1
.
To connect an
RC-3000
to a
VP-23N
unit (see Figure 7), connect the RS-485
terminal block port on the
RC-3000
to the RS-485 port on the
VP-23N
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-23N
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-23N
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
)
Set the
VP-23N
unit to a Machine # other than 1, according to Table 9,
and set DIP 4 ON (for RS-485 Line Termination with 120 )
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 7: Controlling via RS-485 (for example, using an RC-3000)
1 Previously known as the VS-3000
