Connections and LEDs
INSYS Pocket ISDN
20
6
Connections and LEDs
6.1
Front Panel
Figure 2: LEDs on the front panel
Description
Colour LED off
LED on
L1
green
Displays the state of the INSYS Pocket ISDN in encoded form
L2
yellow
Displays the state of the INSYS Pocket ISDN in encoded form
B1
yellow
B channel 1 offline
B channel 1 online
B2
yellow
B channel 2 offline
B channel 2 online
R
red
No data is received
Data is received
T
red
No data is sent
Data is sent
DCD
red
No connection established
Connection to remote terminal is es-
tablished
DTR
red
DTR line not activated
DTR line activated
Table 4: Description of the LEDs on the front panel
The two LEDs L1 and L2 display the state of the INSYS Pocket ISDN according to
following table in encoded form.
L1
L2
Status
Action
on
blinking Start-up process
Wait for start-up process
blinking
off
ISDN error
Check ISDN interface/connector
on
off
active
ISDN OK, no ISDN connection established
on
flashing Call
ISDN connection is being established
on
briefly
off
Sync active
Waiting for B channel synchronisation
on
on
Connection
Data connection is established
off
off
TA error
Hardware error, TA repair necessary
off
blinking TA error
Hardware error, TA repair necessary
flashing
flashing Bootloader ac-
tive
No working firmware; update firmware
Table 5: Device status encoding by LED L1 and L2
L1
L2
B1
R
DCD
B2
T
DTR
ISDN