RISCO Group ProSYS EV - Manual (Page 10)

10 Voice Module Installation Guide
Jumpers and Connectors
This section describes the jumpers and connectors contained on the
Voice module board.
Jumpers
The Voice module board contains the following three
jumpers:
Ø Jumper 1, described below.
Ø Jumper 2, for future use.
Ø Jumper 3, for future use.
Jumper 1
Jumper 1 is used to select an external or internal microphone
for recording messages. The following diagram shows the
placement of the of the selector on jumper 1 when recording
messages externally and internally:
EXT. INT.
Ø External: Place the selector on the (EXT.) pins as
shown in the picture when recording messages from
a microphone located on an MBU.
Ø Internal: Place the selector on the (INT.) pins as
shown in the picture when recording messages from
the microphone located on the Voice module
board.
NOTE:
The Jumper 1 selector must always be placed in either the EXT or the
INT position.