User's Manual

13
General Specification
3.4 GPIO specification
GPIO
1234
1
2
3
4
P,S Swap
Pressing the swap button.
Swaps the primary and
secondary images.
P
S
PIP,PBP1,PBP2 Select
The selection of secondary Image
position button is pressed.
GND
Common ground
Record Indicator
The record indicator is displayed while
a contact closure to the ground pin
is present, the indicator is removed
when the contacts are opened.
The record indicator is displayed in the
monitor’s top left corner.
REC
P
S
S P SP
PIP PBP1 PBP2
P
SINGLE
* GPIO mating connector : RJH 4pin
(telephone handset connector)
RJ9