2 using the ir transmitter, Using the ir transmitter, Figure 3 – Kramer Electronics VP-4x8 User Manual
Page 10: Vp-4x8, Underside view

VP-4x8 - Overview
7
illustrates the underside of the VP-4x8 unit.
Figure 3: VP-4x8 Underside View
Feature
Function
RESET FOR PROGRAM Button
Press to reset unit prior to firmware upgrade (see
separate firmware upgrade guide)
3.2
Using the IR Transmitter
You can use the RC-IR3 IR transmitter to control the machine via the built-in IR
receiver on the front panel or, instead, via an optional external IR receiver (Model:
C-A35M/IRR-50). The external IR receiver can be located up to 15 meters away
from the machine. This distance can be extended to up to 60 meters when used
with three extension cables (Model: C-A35M/A35F-50).
Before using the external IR receiver, be sure to arrange for your Kramer dealer to
insert the internal IR connection cable (P/N: 505-70434010-S) with the 3.5mm
connector that fits into the REMOTE IR opening on the rear panel. Connect the
external IR receiver to the REMOTE IR 3.5mm connector.