Figure 5: rs-485 termination dip-switch – Kramer Electronics VS-88DTP User Manual

Page 18

Advertising
background image

14

VS-88DTP - Connecting the VS-88DTP

Figure 5: RS-485 Termination DIP-switch

5.2.3

Connecting and Controlling Multiple VS-88DTP Devices

You can daisy-chain up to 16

VS-88DTP devices with operation via RS-232 from a

PC or serial controller (see

Figure 6

).

To daisy-chain up to 16 VS-88DTP devices:

1. Connect the RS-232-1 port on the first

VS-88DTP device to the PC (see

Section

5.1

Alternatively, the RS-485 port could be used for PC control.

).

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. (Connect A to A, B to B,
and G to G.)

3. Set the machine number and termination as follows:

The first device is machine number 1 and the subsequent seven
devices are machine numbers 2 to 16 (see

Section

5.2.1

Terminate the first and last devices, that is, terminate machine
numbers 1 and 16. Ensure that all other devices are unterminated (see

)

Section

5.2.2

)

Advertising