After installing the RSTU or PSTU, gently pull the
RSTU or PSTU outward. If the connectors are
properly mated, a light resistance will be felt.
4.6.3 RSTU,
and PSTU
Wiring
Refer to Chapter
Diagrams for
PSTU and
RSTU
and secondary
protectors details.
The RSTU and
are registered for use with
or
type lines for off-premises
stations per information in Table 7-3, Chapter
Wiring Diagrams (PSTU is registered for
OPS
only).
4.6.4 RSTU and PSTU Programming
Overview
The following programming parameters may be
specified for the RSTU,
or PSTU
P U
Program
03-Specify code 31 for all slots that have
and
installed.
Note:
If
there are no RSTU,
or PSTU
options, Program 03 can be skipped, and
Program 9
1 1
or
9 1-9
can
be
run instead.
Program
standard telephone ringing
option.
Programs
19-Used for BGM connection.
Program
21 -Assigns standard telephone ports to
modem
pools.
Program
10-3, 23, 24, 25, 26-Integrated Auto
Attendant Digital Announcer assignments.
Program
31-Configures all RSTU,
and
PSTU ports connected to voice mail or external Auto
attendant devices.
Program
LED
Ol-Standard telephone
Override tone option (Release 3 and above).
Program 35,
LED
03-Standard telephone message
waiting lamp control option
only Release 3
and above).
4.7
Telephone
Interface
Unit (RDSU)
The RDSU in its basic configuration provides two
standard telephone
ports
(Circuits 1 and 2) and four
digital telephone ports (Circuits 5
-
8).
An optional
Standard Telephone Interface Subunit (RSTS) can be
attached to the RDSU to provide two more standard
telephone ports (Circuits 3 and 4).
The RDSU digital telephone circuits can support any
of the devices that the
PDKU can, except for the
DDSS console. The RDSU standard telephone circuits
(including the RSTS circuits) can support all of the
devices that the RSTU and PSTU can. (Alternate
Background Music (BGM) source can be connected to
circuit 2.)
Digital telephones and other devices-except for the
DDCB-that can interface with the RDSU digital
telephone circuits can be connected to any of the
circuits. The DDCB can only be connected to Circuit 5
associated with ports 004, 012, 020 and 028.
Standard telephones and other devices that can
interface with the RDSU standard telephone circuits
(including the RSTS circuits) can be connected to any
of the circuits:
Only the following
slots
support data interface or OCA
units:
S16,
S21
-
S26, S31
S41
-
S42,
S51
-
and S61
-
(See Table 1-8 Worksheet
2 of Chapter l-Configuration).
RDSU and RSTS controls and interface connectdrs
are shown in Figure 4-21. RDSU interface connectors
are described in Table 4-14.
Note:
For
the
system to recognize
tones
generated by a standard telephone (or any
other device connected to a standard
telephone port), a DTMF Receiver Unit
(RRCS-4, -8, or -12) must
be
installed
on
common control unit
(RCTUA, RCTUB,
4.7.1
RDSU
Hardware Options
The RDSU supports the following hardware options:
Internal
Options
Ring Generator
An optional
unit can be connected to the RDSU
or RSTU (see Subsection 4.5.1) to change the
4-26
January
1996
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