User guide

162N TELEKOMUNIKACE a.s., www.2n.cz
®
LED Indicators
Power
supply
green light – mains powered
– device switched offno light
GSM/UMTS
network
green light – call in progress
errorred light –
network registration, SMSgreen flashing –
module restartred flashing –
– signal intensity indicationRed/green flashing
ISDN port
green light – 2 calls in progress
– ISDN synchronisation/active callgreen flashing
– ISDN disconnectedred light
– synchronisation of lower ISDN layersred flashing
Ethernet
port
green light – disconnected+ no orange light
100BaseT connected, ingreen light + orange flashing –
operation
no green light + orange light – 10baseT connected, no operation
green flashing + orange flashing – 10BaseT connection, in
operation
Signal
intensity
Signal intensity indication:one segment = less than –109dbmtwo
segments = more than –95dbmthree segments = more than
–81dbmfour segments = more than –65dbm
* If the devices have been interconnected, the layers will not be connected until the
first call.
**Remember to set the signal intensity indication in the gateway configuration menu.
Potential GSM/UMTS Troubles
All gateways work reliably under a long–time full load. The following2N GSM
®
problems may be caused by GSM/UMTS networks:
The GSM/UMTS module(s) cannot log in, log in slowly, or log out occasionally.
This problem may be caused by any of the following situations:
The GSM/UMTS signal is low. The minimum signal level should be
approximately . If lower, change the antenna position or type!–80dBm
The GSM/UMTS cell (BTS) to which the GSM/UMTS modules are trying to
log in is overloaded. Change the antenna position or reduce the count of
the logged–in GSM/UMTS modules.
One of the GSM/UMTS modules is permanently logged–out or fails to make
outgoing calls:
The problem indicates a GSM/UMTS network overload on the installation
site. To eliminate the problem, set the parameter to Relax delay 2
. If the GSM module fails to log in or rejects to make outgoingseconds
GSM calls even after the gateway restart, consult your GSM provider for
your SIM card/GSM module availability.
The manufacturer shall not be held liable for any SIM card or provider service
unavailability in the case of a breach of the provider's SIM terms and conditions for the
SIM card use.