Kramer Electronics VS-81HDxl - Manual (Page 15)

Connecting Your VS-81HDxl 8x1 HD/SD-SDI Switcher
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6.3 Controlling via the RS-485 Port
To cascade up to eight individual VS-81HDxl units, via RS-485 (with control
via a Master Programmable Remote Control system such as the Kramer
RC-3000), as
Figure 5 illustrates, do the following:
1. Connect the “A” (+) and “B” (-) PINS on the RS-485 terminal block port of
the RC-3000 to the “A” (+) and “B” (-) PINS, respectively, on each of the
eight VS-81HDxl units. (If using shielded twisted pair cable, the shield is
usually connected to the “G” (Ground) PIN of the first unit).
2. Set the first VS-81HDxl unit as MACHINE # 1 and the following seven
VS-81HDxl units as MACHINE # 2 to MACHINE # 8, according to Table 2 .
MACHINE # 1
MACHINE # 8
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
OU
T 13 15
IN
R C -3 0 0 0
RS-485 PINOUT
B
A
_
+
Figure 5: Controlling via RS-485 (for example, using an RC-3000)
6.4 Factory Reset
Press and hold the input buttons 1, 2 and 3 simultaneously for 3 seconds until
the three buttons flash to reset the machine to its default values.