2.1 Before You Start

Caution

Make sure that you are equipped with all system components necessary for putting 2N^® BRI Enterprise / Lite in operation (SIM card, ISDN phone and/or duly configured ISDN BRI line of your PBX or PSTN, an available Ethernet/USB socket and a PC for initial gateway configuration).

Product Completeness Check

Before installing this product, check whether the 2N^® BRI gateway delivery complies with the following packing list:

Package	BRI Lite	BRI Enterprise
2N^® BRI Enterprise / Lite	1	1
Power supply adapter	1	1
Long antenna	1 – 2*	1 – 2*
Ethernet cable	1	1
BRI ISDN cable	1	2
Wall mounting set	1	1

*depends on the Part No.

Connector Lay-Out – Lower Side

The following connectors are available on the BRI gateway bottom:

Connector type	BRI Lite	BRI Enterprise
DC Jack 2.1mm supply connector	YES	YES
10/100BaseT Ethernet connector	YES	YES
ISDN BRI TE interface	NO	YES
ISDN BRI NT interface	NO	YES
ISDN BRI NT/TE interface	YES	NO

Caution

2N^® BRI Lite has two RJ-45 connectors, which, however, are cross-connected into one ISDN BRI. Be sure to connect just one ISDN BRI line to make the system work properly. Which of the RJ-45 connectors will be used depends on the type of the equipment to be connected (NT/TE) and the interconnecting cable (cross/straight).

Connector Lay-Out – Upper Side

There are SMA female antenna connectors to each GSM/UMTS module on the 2N^® BRI Enterprise / Lite upper side.

Status LED Indicators – 2N^® BRI Lite

The 2N^® BRI Lite status is indicated by five LEDs on the front side. BRI 1 and BRI 2 indicate the status of ISDN BRI B-channels and CH 1 and CH 2 indicate the status of each GSM/UMTS module. Refer to the table below for the statuses

LED Indicators
Power supply		green light – mains powered no light – device switched off
GSM/UMTS network		green light – call in progress red light – error green flashing – network registration, SMS red flashing – module restart Red/green flashing – signal intensity indication
ISDN port		green light – 2 calls in progress green flashing – ISDN synchronisation/active call red light – ISDN disconnected red flashing – synchronisation of lower ISDN layers
Ethernet port		green light + no orange light – disconnected green light + orange flashing – 100BaseT connected, in 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.

Status LED Indicators – 2N^® BRI Enterprise

The 2N^® BRI Enterprise status is indicated by five LEDs on the front side. BRI 1 and BRI 2 indicate the status of ISDN BRIs and CH 1 and CH 2 indicate the status of each GSM/UMTS module. Refer to the table below for the statuses.

LED Indicators
Power supply		green light – mains powered no light – device switched off
GSM/UMTS network		green light – call in progress red light – error green flashing – network registration, SMS red flashing – module restart Red/green flashing – signal intensity indication
ISDN port		green light – 2 calls in progress green flashing – ISDN synchronisation/active call red light – ISDN disconnected red flashing – synchronisation of lower ISDN layers
Ethernet port		green light + no orange light – disconnected green light + orange flashing – 100BaseT connected, in 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 2N GSM gateways work reliably under a long-time full load. The following 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 −80dBm. If lower, change the antenna position or type!
- 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 Relax delay parameter to 2 seconds. If the GSM module fails to log in or rejects to make outgoing 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.