7 cascading multiple vp-81ksi devices, Cascading multiple vp-81ksi devices, Table 4: machine number dip-switch settings – Kramer Electronics VP-81KSi User Manual
Page 18: Table 4
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VP-81KSi 8x1 UXGA/Audio STEP-IN Switcher
14
Table 4: Machine Number DIP-switch Settings
Machine Number
1
2
3
1 (Default)
OFF
OFF
OFF
2
OFF
OFF
ON
3
OFF
ON
OFF
4
OFF
ON
ON
5
ON
OFF
OFF
6
ON
OFF
ON
7
ON
ON
OFF
8
ON
ON
ON
DIP-switch 4 sets the RS-485 bus termination of the VP-81KSi. Only the first and
last physical units on the RS-485 bus must be terminated, all others must be
unterminated. Moving the DIP-switch up turns the termination off (default),
moving the switch down turns the termination on.
6.6.2 Connecting and Controlling Multiple VP-81KSi Devices
You can daisy-chain up to eight VP-81KSi devices with operation via RS-232
from a PC or serial controller.
To daisy-chain up to eight VP-81KSi devices:
1. Connect the RS-232 port
on the first VP-81KSi device to the PC (see
Section 6.3
2. Connect the RS-485 terminal block port on the first device to the RS-485 port
on the second device, and so on for all devices.
).
3. Set the DIP-switches (see
Section 6.6.1
The first device is machine number 1 and the following seven devices
are machine numbers 2 to 8
) as follows:
Terminate the first and last physical devices, that is, in this example
terminate machine numbers 1 and 8. Ensure that all other devices are
unterminated
6.7 Cascading Multiple VP-81KSi Devices
You can cascade up to eight VP-81KSi devices to build a single “virtual” switcher
with up to 57 inputs and one output as illustrated in
To cascade up to eight VP-81KSi devices:
1. Connect the output on the Master VP-81KSi to the video acceptor (for
example, a projector).
2. Connect Input 1 on the Master VP-81KSi to the output of the second device.
3. Connect Input 1 on the second VP-81KSi to the output of the third device,
and so on for all devices.
1 Alternatively, the RS-485 port could be used for PC control