
13
See Table 4.B for default jumper settings and descriptions. (Default settings may be different if you ordered a
special configuration NetGuardian).
Jumper
Description
Open
Closed
J4 Analog
1
Voltage* Current
J6 Analog
2
Voltage* Current
J9
Factory use only
N/O*
—
J10
Factory use only
N/O*
—
J5
Factory use only
N/O*
—
J3
Factory use only
N/O*
—
Table 4.B
Jumper descriptions and settings
* Factory Default
Front and Back Panel LEDs
4.8
Fig. 4.14
Front panel LEDs
LED
STATUS
DESCRIPTION
FA
Solid Red
Fuse has failed
Blink Red
New alarm status
Alarm
Solid Red
Standing alarm acknowledged
Error
Blink Red
Errors detected
Blink Red
DCP or SNMP data receive
Traffic
Blink Green
DCP or SNMP data transmit
Blink Red
TNG216 receiving data
Craft
Blink Green
TNG216 transmitting data
Table 4.C
Front Panel LED status
The front and rear panel LEDs display alarm and communication status. Table 4.C and 4.D shows the meaning of
the LED display messages.