Kramer Electronics VA-8XL Manual de usuario descargar pdf (Pagina 19)

16 VA-8xl - Controlling the VA-8xl

6.3.3 Connecting the RS-485 Control Interface

To connect an RS-485 connector on one VA-8xl unit to an RS-485 connector on

another unit:

1. Connect the “+” PIN on the first VA-8xl unit to the “+” PIN on the second

VA-8xl unit

2. Connect the “-” PIN on the first VA-8xl unit to the “-” PIN on the second

VA-8xl unit

3. If shielded cable is used for an RS-485 connection, connect the shield to the

Ground PIN.

Figure 12 illustrates the RS-485 line that connects:

• Between each VA-8xl unit

• To the PC via a Kramer Tools VP-43xl Interface Converter

(connect the PC’s 9-pin D-sub COM port to the “RS-232 in” 9-pin

D-sub (F) port on the VP-43xl. Next, connect the RS-485 port on

the VP-43xl to the RS-485 ports on the VA-8xl units)

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Kramer Electronics VA-8XL Manual de usuario Pagina 19