Toshiba Strata AirLink DK40i, Installation And Maintenance Manual

Page: 328 / 724

T1
Slot Assignments
8-6
Strata DK I&M 6/00
connected), either the DK RDTU span or the far end equipment can be the Master
(synchronization clock provider).
♦
Program *42-1, Primary Timing Reference Assignment: Assign the Primary Timing
Reference with this program.
♦
Program *42-2, Secondary Timing (Backup) Reference Assignment: Assign the
Secondary (Backup) Timing Reference with this program.
♦
To assign RDTUs for the Master Clock Provider, leave Programs *42-1 and *42-2 blank.
Press button/LED01 to enter blanks.
Important!
The Digital Network is connected to clocks with various degrees of precision called
stratum levels from Stratum 1 (highest level of accuracy) to Stratum 4 (lowest level)
as follows:
•
Stratum 1—Public Telephone Network clock located in Hillsboro, Missouri.
•
Stratum 2—Normally associated with #4 ESS Toll switches.
•
Stratum 3—Normally associated with #5 ESS Central offices.
•
Stratum 4—Normally associated with Digital PBXs.
•
If a DK RDTU is programmed as the Primary Synchronization Clock reference,
the clock provider connected to this RDTU should be a reliable clock provider,
such as a Telco or common carrier (Example—AT&T). All other T1 span lines
connected to RDTUs in the DK must be synchronized to the same clock source as
the AT&T span line. If a T1 span line is not synchronized with the primary clock
provider (AT&T, for this example), then DK lines assigned to this T1 span line
(RDTU) may experience “slip” problems.
9. The programs in Steps 1~8 are described for specific RDTU application programming. Also
refer to “System Programming for T1” on Page 8-3 . Run the programs as they apply to RDTU
CO line applications.
RDTU Programming
The following programs select the number of channels supported by the RDTU and assign line
operation for the individual channels.
Notes
●
RDTU Tie lines can route per Program 04 [DN] assignment or Program 71 and 72 DNIS
assignments (see Program 17, LED 05).
●
RDTU DID lines can route per Program *09 assignments or Program 71 and 72 DNIS
assignments (see Program 17, LED 05).
Program 03: Specify Code 71 for an 8-channel RDTU, Code 72 for a 16-channel RDTU, or Code
73 for a 24-channel RDTU. (The 8-channel RDTU is the default.) Also, the Dual-Tone Multi-
Frequency receiver (RRCS) must be installed and assigned if RDTU Tie and/or DID lines are
DTMF.
Note
If the T1 is 8 channels, skip Program 03 and run Programs 91, 91-1 or 91-9 instead.
Program 04: Tie line digit translation (if T1 channel is Tie). Also see Programs 17 and 71~72.
Program *09: Use to translate DID digits to ring designated stations. Also see Programs 17 and
71~72.