Siemens INSYS Pocket ISDN-TA, Operating Manual, Page: 41 / 44

Appendix 35
B1,B2 Status B channels
O
B channel offline ;
⊗
B channel online ; ISDN connection established
Error states:
L1 L2 Status
O O
TA not ok ; Hardware error, TA repair necessary
Θ O
ISDN not ok ; Check ISDN interface/ -connector
O Θ
(nx1s) TA not ok ; Hardware error, TA repair necessary
Θ Θ
B1, B2 flashing: Bootloader aktive, no operational firmware
programmed. Use command at**flash to
download firmware with 115200 Bd,N81 (see
page 29).
LED Legend:
⊗
On
∅
occ short on, long off Cycle 1 sec
⊕
fl long on, short off Cycle 1 sec
Θ
( n x m s) continuous blinking: n times every m seconds
O
Off
A3:
Pinout of the ISDN connector
Pinout of the 8 pin ISDN S-interface connector (RJ45) (ITU I.430/ISO 8877)
Pin Signal (S
0
)
1 Not connected
2 Not connected
3 Tx+ (Tr)
4 Rx+ (R)
5 Rx- (Receive -)
6 Tx- (Transmit -)
7 Not connected
8 Not connected