Figure 8: Rs-485 Configuration Between The Vp-727A And The Vp-727 - Kramer VP-727A User Manual

2. Connect the VP-727 to the VP-727T as follows:
Connect the "A" (+) PIN on the RS-485 rear panel port of the VP-727
to the A (+) PIN on the RS-485 rear panel port of the VP-727T unit
Connect the "B" (-) PIN on the RS-485 rear panel port of the VP-727
to the B (-) PIN on the RS-485 rear panel port of the VP-727T unit
If shielded twisted pair cable is used, the shield may be connected to
the "G" (Ground) PIN on one of the units
3. Slide the underside RS-485 TERMINATION switch to ON.
VP-727A
VP-727
RS-485 PINOUT
G
_
B
+
A

Figure 8: RS-485 Configuration between the VP-727A and the VP-727

Configuring the VP-727A Audio Switcher
VP-727T Side Panel
15