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VIA AMOS-3007 User Manual
4.1.2 JCOMV2 Voltage Jumper
The voltage jumper “JCOMV2” is set to determine the input carry voltage or Ring Indicator (RI) signal of COM2
port on the front panel. The control signal Ring Indicator (RI) is the default setting. The jumper settings are
shown below.
JCOMV2
1
3
2
RI
+5V
+12V
Figure 21: JCOMV2 voltage jumper diagram
Settings
Pin 1
Pin 2
Pin 3
RI (default)
Open
Open
Open
+5V
Short
Short
Open
+12V
Open
Short
Short
Table 11:
JCOMV2 voltage jumper settings