Kramer Electronics VS-88HCB - Manual (Page 17)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VS-88HCB
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6.3 Controlling via RS-485
You can control a VS-88HCB unit via an RS-485 controller 1 , for example, a
PC (equipped with an RS-485 interface) or a Master Programmable Remote
Control system, such as the Kramer RC-3000.
To connect an RC-3000 to a single VS-88HCB unit (see Figure 8):
1. Connect the RS-485 terminal block port on the RC-3000 to the RS-485 port on
the VS-88HCB unit, as follows:
Connect the “A” (+) PIN on the RS-485 rear panel port of the
RC-3000 to the “A” (+) PIN on the RS-485 rear panel port of the
VS-88HCB unit
Connect the “B” (-) PIN on the RS-485 rear panel port of the
RC-3000 to the “B” (-) PIN on the RS-485 rear panel port of the
VS-88HCB unit
If shielded twisted pair cable is used, the shield may be connected to
the “G” (Ground) PIN on one of the units (for example, on the
RC-3000)
2. Set the SELF ADDRESS # dipswitches on the VS-88HCB unit to a SELF
ADDRESS # between 2 and 8, according to section 6.5.1. Do not set as SELF
ADDRESS # 1 (the Master). Terminate the RS-485 line on both the
VS-88HCB unit (set DIP 4 to ON) and on the RC-3000 2 .
Figure 8: Controlling via RS-485 (for example, using an RC-3000)
1 RS-485 can be used for control even for distances exceeding 1km
2 Refer to the RC-3000 user manual for details of how to terminate the RS-485 line