Kramer Electronics VS-81ETH - Manual (Page 31)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting and Controlling the VS-81ETH
28
5.8 Cascading Machines
You can cascade up to 8 VS-81ETH units with control from a PC or serial
controller (see Figure 28).
To cascade up to 8 individual
VS-81ETH units, via RS-232 and RS-485, do
the following:
1. Connect the VGA/UXGA sources and acceptors, as section 5.1 describes.
2. Connect the RS-232 port
1 on the first VS-81ETH unit to the PC using
the Null-modem adapter provided with the machine (recommended), as
section 5.2 describes.
3. Connect the RS-485 terminal block port on the first unit to the RS-485 port
on the second VS-81ETH unit and so on, connecting all the RS-485 ports.
4. Set the Machine # dipswitches, as section 5.5 describes. Set the first
VS-81ETH unit as Machine # 1 and the following 7 VS-81ETH units as
Machine # 2 to Machine # 8, according to Table 4.
Machine # 1 (Master)
Machine # 2
Machine # 8
Up to 8 Units
Figure 28: Control Configuration via RS-232 and RS-485
1 Alternatively, the RS-485 port could be used for PC control (instead of RS-232)