Kramer Electronics VP-885 - Manual (Page 33)

Controlling the VP-885
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6. Connect the RS-485 port on the first VP-885 to the RS-485 terminal
block on the second VP-885 unit as follows:
 Connect the A (+) pin on the RS-485 rear terminal block of the first
VP-885 to the A (+) pin on the RS-485 rear panel terminal block on
the second VP-885
 Connect the B (–) pin on the RS-485 rear panel terminal block of the
first VP-885 to the B (–) pin on the RS-485 rear panel terminal block
of the second VP-885
 Connect the G pin on the RS-485 rear panel terminal block of the
first VP-885 to the G pin on the RS-485 rear panel terminal block of
the second VP-885
7. Using the same wiring configuration as described in Step 6 , interconnect
the RS-485 bus on the rest of the VP-885 units. Up to sixteen VP-885
units can be connected (see 6.2 Section ).
Figure 22: Controlling the VP-885 via Ethernet