Toshiba Strata DK 280 Installation Manual page 164

4.14.1
RDTU Hardware Options
The RDTU supports the following hardware options.
Internal Option
H SW1 Equalizer switch and loop back jumpers
The distance between the DK280 cabinets and the
CSU (or other customer premise Tl circuit)
determines the setting of the SW1 Equalizer Switch.
The SW1 Switch consist of a bank of smaller switches,
Sl - S7. Set the SW1 switch as follows:
H Short Mode (CSU distance from DK280 is 0 - 150
feet): Sl must be ON. S2 - S7 must be OFF.
H Medium Mode (distance is 151 - 450 feet): S2,
S4, and S6 must be ON. Sl, S3, S5, and S7 must
be OFF.
n Long Mode (distance is 450 - 655 feet): S3, S5,
and S7 must be ON. Sl, S2, S4, and S6 must be
OFF. The maximum distance between the RDTU
and the CSU or other Tl circuits can not be more
than 655 feet (see Chapter 1 l-T1 Interface).
External Option
W None
4.14.2 RDTU Installation Procedures
Install the RDTU in accordance with the following
steps:
1. Remove the RDTU from its protective packaging.
2. Set jumper wire plugs Pi (LB), P2, P3, and P4 to
the off position. See Chapter 1 l-T1 Interface for
loop back testing procedures.
3. Refer to Subsection 4.13.1 for the appropriate
SW1 equalizer switch setting.
Note:
Ensure the RDTU's component side is facing
right when installing it in the KSU.
4. Insert the RDTU into the appropriate slot and
apply firm, even pressure to ensure proper mating
of connectors. (See Chapter 1 l-T1 Interface and
Chapter l-configuration Worksheet 2 for RDTU
slot assignment recommendations.)
5. After installing the RDTU, gently pull the PCB
outward. If the connectors are properly mated, a
slight resistance will be felt.
4.14.3
RDTU Wiring
Refer to Chapter 1 l-T1 Interface or RDTU wiring
diagram in Chapter 7-Wiring Diagrams for
wiring/interconnecting details.
4.14.4
RDTU Programming Overview
The following programming parameters may be
specified for the RDTU:
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.) Make sure RRCS is enabled for DTMF
operation when using tie and DID lines.
Note:
If the TI is 8 channels, Program 03 can be
skipped, and Program 91, 91-l or 91-9 can be
run instead.
Program 04-Tie line digit translation (if Tl channel is
tie). Also see Program 17 and 71 - 73.
Program
*09-DID line digit translation (if Tl channel
is DID). Also see Program 17 and 71 - 73.
Program
lo-l--Enables or disables Two-Line
Conference and Direct Inward System Access (DISA).
Program
15-Assigns 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 automatically enabled for ground
start lines. I
Program
*15-Makes tenant assignments.
Program
16-Assigns lines to line groups,
Program
17-Tie/DID line options.
Program *17-DID Intercept assignments (if Tl is
DID).
Program
30-Disables RRCS for tie/DID dial pulse
operation.
Program
39-Assigns line access buttons to digital
and electronic telephones.
Program
40-Assigns
(incoming and outgoing).
Program
41-Assigns
(outgoing only).
station access to lines
station access to -lines
4-48
January 1996