Baer UniMod GSM-4, User Manual

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UniMod GSM-4
10
5 Display
Some of LEDs
’ display the current operating status of the modem and give in-
formation about the data transfer

Power signals, that the modem is supplied with power.

GSM - permanently off: power down mode
- 500 ms on / 500 ms off: Limited Network Service: No SIM card
inserted or no PIN entered, or network search in progress, or on-
going user authentication, or network login in progress
- 300 ms on / 2,7 s off: IDLE mode: The mobile is logged to the
network (monitoring control channels and user interactions); no
call in progress
- permanently on: CSD call: Connection to remote party

INF Information: 3 LEDs showing processor status and field strength.
Modem is ready for programming, data transmission and call
answering not before the leftmost INF-LED is on.
This happens
- in CSD mode (GSM dial-up connection): about 50 seconds after
“Power On”
- in GPRS mode : about 6
0 seconds after “Power On”

RI lights, when the modem rings

DCD - in CSD mode lights, when the modem has built a data link to re-
mote station
- in GPRS mode :
IPT or BAER: DCD lights, when the modem is logged to the
GPRS-Bridge
fixed IP address: DCD lights, when a remote modem has built a
data link to the UniMod GSM4;

TxD lights, when data is transferred from modem to target device (e.g.
meter)

RxD lights, when data is transferred from target device to modem