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.