Nortel Modular Ics 6.0 Installer Guide

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P0992638 03Modular ICS 6. 0 Installer Guide
BRI card
LoopInstaller password required
The display shows the loops found on the BRI card.
Press ‘ to display the settings for individual loops on 
a BRI card.
Type
Press CHANGE
 to select the loop type. 
If the card type is BRI-ST, the loop type can be S, or T. 
If the card type is BRI-U2 or BRI-U4, the loop type can be 
LT or NT.
Lines
There are two lines for each T or NT loop.
The BRI card must be disabled in Module status 
before this setting can be changed. 
You can change the setting if the card has not yet been 
installed in the ICS slot.
LoopDefault lines
201001-002
202003-004
203005-006
204007-008
231031-032
232033-034
233035-036
234037-038 
						

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No SPIDs assigndInstaller password required
T and NT loops can be assigned a system profile identifier 
(SPID) as supplied by your service provider. No SPIDs are 
assigned by default.
When the loop type is T, calls on the loop are handled for a 
network connection only. If any other ISDN equipment is 
connected to the loop, it must be configured as an S loop to 
ensure proper call handling.
1. Press ADD
 and enter the first or second SPID assigned to 
the loop. 
If there are two SPIDs already assigned to the loop, ADD
 
will not appear until one is removed.
2. Press REMOVE
 to clear a SPID.
Note:  Profile 2 loops do not require SPIDs.
# of B-channels
Installer password required
Press CHANGE to select the number of B-channels that are 
associated with the SPID: 1 or 2.
Tips - When you order an ISDN capability package that 
supplies two B-channels, you may receive one or two SPIDs 
from your service provider. 
If you receive one, it usually means you will configure 
the SPID to use two B-channels.  
If you receive two, it usually means you will configure 
each SPID with one B-channel. Check with your 
service provider if you are not sure about the proper 
configuration. 
						

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P0992638 03Modular ICS 6. 0 Installer Guide
Network DNsInstaller password required
1. Press ≠ to display the DNs which are used with 
the SPID.
2. Press ADD
 and enter the appropriate number to assign 
additional Network DNs to the SPID.
The Modular ICS can have a maximum of 128 Network DNs 
for the system. There is no limit to the number of Network 
DNs for each SPID, but you cannot exceed the limit of 128 
Network DNs for the system.
If the Network DN you try to enter is already assigned to a 
SPID with a call type of Both, you will not be able to assign 
the DN again. 
If the Network DN you enter is already assigned to a SPID and 
the call type is Voice or Data, it will be automatically 
programmed with the unused call type. For example, if the DN 
has Call type set to Voice in the previous SPID assignment, it 
will be automatically set to handle Data calls when the same 
DN is added to the other SPID.
Call type
Installer password required
Press CHANGE to select the call type of the Network DN: 
Voice, Data, or Both.
CHANGE
 will not appear if the Network DN is already in use by 
the system and the call type will be automatically programmed 
with the unused call type. For example, if the DN has Call type 
set to Voice in a previous SPID assignment, it will be 
automatically set to handle Data calls when the DN is entered 
the second time. 
						

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D-packet servceInstaller password required
1. Press ≠ to view and program D-packet service 
for T or NT loops. You can have two D-packet service 
configurations for each BRI card.
2. Press CHANGE
 to turn D-packet service for this loop on (Y) 
or off (N).
Lp
Installer password required
1. Select the S loop (for BRI-S/T cards) or LT loop for BRI-
U2 or BRI-U4 cards that supports the D-packet service.
2. Press CHANGE
 to move through a list of the loops which are 
available on this card.
Note:  If only one loop is available, you will not see CHANGE
.
TEIs
Installer password required
Press ≠ to view and program the Terminal Endpoint 
Identifiers (TEIs). Each TEI is supplied by your service 
provider and is associated with an ISDN D-channel packet 
device.
Tips - If our service provider does not specify the call type 
for each Network DN, it is probably available for both voice 
and data. Check with your service provider if you are not 
certain about the proper configuration.
Tips - An LT loop must already be assigned. 
						

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P0992638 03Modular ICS 6. 0 Installer Guide
No TEIs on loopInstaller password required
Press ADD to program up to eight TEIs to this loop.
Sampling
Installer password required
Press CHANGE to select the sampling used by an S loop: 
Fixed — if two or more S-interface devices use the loop 
and the length of the loop is less than 200 m (650 ft.), select 
Fixed.
Adaptve — if two or more S-interface devices use the 
loop and the length of the loop is greater than 200 m (650 
ft.), select Adaptve.
If one S-interface device is using the loop, the length of the 
loop can be up to 1000 m (3,250 ft.) and the rate should be set 
to Adaptve.
The BRI card must be disabled under Module status in 
Maintenance programming, before you can change this 
setting. You can change the setting if the card has not yet been 
installed in the ICS slot.
DNs on Loop
Installer password required
Press ≠ to view and program the ISDN DNs assigned 
to the loop.  
						

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Assign DNsInstaller password required
1. Press ≠ and enter the ISDN DN you wish to 
assign to this loop, or press SCAN
 to move through a list of 
DNs already assigned to the loop. 
The display shows:
Availabl, Assigned — assigned to this loop
*Lpnnn* — assigned as the default DN of
another loop
Lpnnn — assigned to another loop
2. Press LIST
 to view the DNs assigned as ISDN DNs. 
The default ISDN DN range is 667-696. For information 
about changing ISDN DN type, see Changing Companion 
DN type on page 425. 
3. Press CHANGE
 to assign the DN to the loop or to remove it.
Loop DN
Press CHANGE
 to move through the ISDN DNs you have 
assigned to the loop. 
This will assign the main ISDN DN to the loop. 
You can also set Loop DN to None.
Clock Src
Installer password required
Systems with digital interfaces need to synchronize to the 
network in order to function. Synchronization is done in a 
hierarchical way, where each device/switch obtains the 
network clock from the device/or switch above it in the 
synchronization hierarchy and passes the network clock to the 
device/switch below it in the synchronization hierarchy. The 
synchronization levels are referred to as strata. 
						

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Norstar systems are stratum 4E equipment and are usually 
used as termination points in a network.
For each DTI, choose one of the following settings:
Primary reference
The DTI obtains the timing reference from the network, which 
the system synchronizes to. This is the default value for the 
DTI in slot 1 in the ICS. If the system is configured with a DTI 
card that has been configured as PRI, the setting should be set 
to Primary.
Secondary reference (Secndry)
The DTI acts as a standby reference. If there are excessive 
errors on the primary reference T1 link, or the DTI designated 
as primary reference fails, this DTI will obtain the timing 
reference from the network, which the system synchronizes to. 
This is the default value for the DTI in slot 2 in the ICS.
Timing master (TimeMst)
The DTI does not obtain timing from the network, but 
transmits the systems timing to equipment connected to it. 
Tips - If a BRI card becomes clock source, it will have up 
to four clock sources available (T, S, U-NT, NT loops only). 
Only when all four clock sources have an alarm will the card 
cause a switch to the secondary or hold-over state.
BRI -T, S, and U-NT interface loops may be autonomously 
powered down by the network. This will be treated as a loss 
of clock source on that loop. 
						

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The following illustrations show some typical network 
configuration and the appropriate clock source settings for 
your DTIs.
Norstar connected directly to the service provider in a T1 network
The installer should ensure that clock source loops are 
either not powered down or are among the last to be 
powered down.
If BRI cards are used only for S-loops, a Service Card is 
required only if the DTI is T1. However, a Services Card is 
recommended when a T1 is not used, since the card improves 
clock accuracy and performance.
If BRI cards are used off-core, they still require a connection 
to the network, which requires the SC, and an on-core digital 
clock source.
For more information on network synchronization, consult 
the appropriate private digital network synchronization 
standards.
Primary - DTI 1 obtains the timing from the service provider
Secondar y - DT12 acts as a standby to obtain the timing 
from the service provider
Norstar ICS
T1 or PRI 
ser vice provider 
						

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Norstar connected to another switch or MUX in a T1 or PRI network
Norstar connected to another switch in a closed T1 or PRI network
Norstar ICS
Primary - DTI 1 obtains the timing from the network
Secondary - DTI 2 acts as a standby to obtain the timing
from the network
T1 service
provider
Other switch or MUX in networkNorstar ICS
T1 or PRI 
ser vice provider
Primary - DTI 1 obtains the timing from the network
Secondary - DT12 acts as a standby to obtain the timing 
from the networkOther switch or MUX in network
T1 or PRI 
service 
provider Norstar ICS
Norstar or other switch
Primary - DTI 1 obtains the 
timing from the T1 service 
provider
Secondar y - DTI 2 acts as 
standby to obtain timing from 
the networkSecondary - DTI 2 acts as 
standby to obtain timing 
from the networkPrimar y - DTI 1 
obtains the timing 
from the T1
ser vice provider 
						

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Norstar connected in a series of switches in a T1 or PRI network
Norstar connected by a T1 link to another switch in an analog 
network
Norstar ICS
Primary - DTI 1 obtains the timing
from the T1 service provider
Timing master - DTI 1 transmits the
systems timing to the other switch
T1 service
provider Norstar or other switch
Primary reference
T1 or PRI 
service 
provider
Primary referencePrimary - DTI 1 obtains timing 
from T1 service provider
Timing Master - DT1 1 transmits 
system timing to other switch Norstar or other switch
Norstar ICS
Norstar or other switch
Norstar ICS
Primary - DTI 
obtains timing from 
other switchTiming master - 
DT1 transmits 
system timing to 
the other switch