Specifications

Chapter 6: Programming
Configuring a Basic Rate Module (BRM-S)
Page 6-116 Mitel
®
5000 Installation Manual – Issue 3.0, October 2008
Port Status
The screen displays the status of the following:
• Out of Sync: When this field displays a NO value, it indicates that the port is synchronized
with the terminal connection. If it is a trunk port, this indicates that the connection with the
CO (local exchange) is operational. If it is an endpoint port, it indicates that the signal is
being transmitted to any devices connected to the port. If the value is YES, then the port is
not synchronized with its terminal connection, but may still have signal. Further information
will be provided in the Troubleshooting section of the Installation and Field Maintenance
Manual.
• Loss of Signal (LOS): This field indicates that the port either does (a value of NO) or
does not (a value of YES) recognize the device or CO (local exchange) trunk it is
connected to. When the Loss of Signal field has a value of YES, the Out of Sync value
should also be YES. When the Loss of Signal field has a value of NO, the Out of Sync
field can assume either value and provides additional information about BRI status.
• 2B Loopback: When the 2B Loopback Test is active, data entering the device on the B1/
B2 receive channels is demodulated and remodulated back out on the B1/B2 transmit
channels. Data is received and transmitted on the same B channel, either B1 or B2, and
does not cross channels. This test checks the transmission and reception between the
BRS Module and the public network, verifying the integrity of the BRS chip transceiver and
the physical interface from the module to the public network. BRS endpoint ports cannot
perform loopback tests on the D channel.
SPID/DN/TEI
The SPID/DN/TEI option applies only for BRI trunk ports only. Each BRI trunk can have up to 16
SPID/DN/TEI pairs.
• Directory Number (DN): (US Only) Is the number. No DN numbers are assigned by
default.
• Service Profile Identification (SPID): (US Only) Contains the bearer information so that
the CO can associate the number with a set of bearer types, The CO will reject calls to the
directory number based on the bearer types assigned to that number. This also allows the
CO to charge a higher rate for numbers that have more bearer capabilities (for example,
numbers which support data or video as opposed to just speech). No SPIDs are assigned
by default.
• Terminal Endpoint Identifier (TEI): Contains value that Network uses to identify the
terminal. This value can be fixed or automatically assigned by the Central Office. In a
point-to-point setup, there is only one TEI. In a point-to-multipoint setup, there is at least
two. For the US, each SPID/DN pair has an associated TEI. The default is set to
Automatic.
Some Central Offices do not allow 16 SPIDs, and some allow as few as six. Also, SPID/DN/TEI
pairs are only defined for North American ISDN switch types, so they are defined only for the
US Systems. Other countries do not support SPID/DN.