Toshiba Strata DK 280 Installation Manual page 631

n Program x42-1, Primary Timing Reference
Assignment-assign the Primary Timing
Reference with this program.
n Program *42-2, Secondary Timing (Backup)
Reference Assignment-assign the
Secondary (Backup) Timing Reference with
this program.
n To assign RDTUs for the Master Clock
Provider, leave Programs *42-l and *42-2
blank. Press button/LED01 to enter blanks.
IMPORTANT !
1. 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:
H STRATUM l-Public Telephone
Network clock located in Hillsboro,
Missouri.
n STRATUM 2-Normally associated
with #4 ESS Toll switches.
n STRATUM 3-Normally associated
with #5 ESS Central offices.
n STRATUM 4-Normally associated
with Digital PBXs.
2. If a DK280 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 Tl span lines
connected to RDTUs in the DK280 must
be synchronized to fhe same clock source
as the AT&T span line. If a Tl span line is
not synchronized with the primary clock
provider (AT&T, for this example), then
DK280 lines assigned to this Tl span line
(RDTU) may experience "slip" problems.
10. The programs in Step 1-8 are described for
specific RDTU application programming. The
programs listed below apply to any type of DK280
CO lines and also to RDTU CO lines. The
guidelines for these programs are given in
Chapter g--Record Sheet Instructions. Run the
programs listed below as they apply to RDTU CO
line applications.
Program 03 (see previous Step
1)-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 assign RCCS to RCTU for tie
and DID DTMF lines-if RDTU tie and/or DID
lines are DTMF, RRCS must be installed.
Program
*09-Use to translate DID digits to
ring designated stations.
Program
lo-l--Use to enable or disable
Two-Line Conference and Direct Inward
System Access (DISA).
Program
15-Use to assign Dual-tone Multi-
frequency (DTMF)/Dial Pulse dialing, DISA,
and additional attributes to each line.
Automatic Release (AR) assignments only
need to be made for loop start lines; AR is not
needed for ground start lines. With DK280,
Release 3, Program 15 is used to enable DID
lines with DNIS and ANI options.
Program
*15-Use to make tenant
assignments.
Program
16-Use to assign lines to line
groups.
Program
17 (see previous Step 5)-Use to
assign tie/DID Auto Camp-on, and second dial
tone.
Program
*17-Use to assign intercept port
for DID line calls to wrong or vacant numbers.
Program
30-If RDTU tie and/or DID lines
are Dial Pulse (DP-Program 15-l), then
Program 30, LED 11 should be ON for the
tie/DID station port numbers; if they are
DTMF, LED 11 should be OFF.
Program
39-Use to assign line access
buttons to digital and electronic telephones.
Program
40-Use to assign station access to
lines (incoming and outgoing).
Program 41-Use
to assign station station
access to lines (outgoing only).
Program *41
Series (see previous Steps 2, 6,
and 7)-Run to assign RDTU channel line
operation, as well as coding and framing
modes.
Program 42-0, 1
- 8-Use to assign behind
PBWCENTREX operation to each line.
Program
*42
Series (see
previous
Step 8)-Use to assign timing reference for
RDTUs.
January 1996 11-7