Toshiba Strata DK 280 Installation Manual page 162

BACKPLANE CONNECTOR
P401
P301
HyL
3 0
P201 3 0
f!mzi30
pirJ
HMLm
SW301
HyL piiJ
P101 3 (-j
SW201
HyL piiJ
SW1 01
Figure 4-29
RDDU Controls, Indicators, and Interface Connectors
Programs 71 (1
- 5)-Assigns DNIS or ANI option to
DID lines.
Programs "71 - *73-Assigns telephone to ring
called Directory Number.
Program
93-Assigns names to lines.
4.14 Tl
Interface
Unit (RDTU)
The RDTU provides either 8, 16, or 24 channels, each
of which can be individually configured for Ground
start CO line operation, loop start CO line operation,
DID operation, or tie line operation.
Notes:
1. RDTU is configured for tie or DID lines, an
RRCS must be installed for DTMF
operation. Also, each tie or DID line
decreases the system's station port and
CO line capacity by one.
2. RDTU tie lines can route per Program 04
[DN] assignment or Program 71 and 72
DNIS assignments (see Program 17, LED
05).
3. RDTU DID lines can route per Program
*09 assignments or Program 71 and 72
DNIS assignments (see Program 17, LED
05).
Use system programming to select the number of
channels supported by the RDTU and to assign line
operation for the individual channels.
The RDTU requires installation of a customer-provided
Channel Service Unit (CSU). Refer to Chapter 1 l-T1
Interface for CSU installation.
LEDs on the RDTU show a continuous status of
RDTU operation. Fault Finding procedures are in
Chapter 12-Fault Finding and testing procedures
(Local Loop Back and Remote Loop Back) are in
Chapter 1 l-T1 Interface.
A Strata DK280 system operating with an RCTUC/D
common control unit can support up to six RDTU
PCBs. A system with an RCTUB, RCTUBA/BB
common control unit can have up to two RDTU PCBs.
The RDTU cannot be installed in a system operating
with the RCTUA common control unit.
The RDTU controls, indicators, and interface
connectors are shown in Figure 4-30, Table 4-23 and
are described in Chapter I l-T1 Interface.
4-46
January
1996