Owner's manual

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting and Controlling the VS-81ETH
10
5.3 Controlling via RS-485
You can control a VS-81ETH 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
1
.
To connect an RC-3000 to a VS-81ETH unit (see Figure 6):
1. Connect the RS-485 terminal block port on the RC-3000 to the RS-485
port on the VS-81ETH 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 VS-81ETH 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 VS-81ETH 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 VS-81ETH unit as Machine # 1, according to Table 4 (that is,
DIP 1, DIP 2, DIP 3, and DIP 4 are set to OFF).
KEYBOARD EXTENSION REMOTE CONTACT
RS-485 RS-232 IN RS-232 OUT
12 VDC
1 2 1 2 3 4 5 6 7 8 G4 6 8 103 5 7 9 11 1 2 14 16
OU T
13 15
IN

RS-485 PINOUT
G
B
A
_
+
Figure 6: Controlling via RS-485 (for example, using an RC-3000)
1 Previously known as the VS-3000