Remu Installation - Toshiba Strata DK14 Installation And Maintenance Manual

REMU
Tie Line Unit
System:
DK40i Expansion KSU, DK424
Circuits per PCB:
four Tie line circuits
Interfaces with:
E&M Tie lines
2- or 4-wire transmission
Type I and II Signaling
Immediate and Wink Start
Older Version(s):
PEMU (Type I signaling & immediate start only,
does not provide PAD switches)
With DK424, Tie lines can route per Program 04 [DN] assignments or Program 71 and 72 DNIS/
ANI assignments (see Program 17).
The REMU has four decibel (dB) PAD switches which can be set to reduce excessive loudness
resulting from close proximity to a central office or PBX by providing a -3 dB signal level drop to
the PBX or central office. (PAD is for Transmit and Receive for 2W operation, and Transmit only
is for 4W operation.)
Note For the system to recognize the DTMF tones generated by incoming DID lines a DTMF
Receiver Unit (RRCS -4, -8, or -12) must be installed on the DK40i Base KSU K4RCU3
or on any DK424 RCTU.
RRCS is not required for REMU dial pulse operation (see Program 30, LED 11).
REMU controls, indicators, and interface connectors are shown in
Table 7-14.
PEMU controls, indicators, and interface connectors are shown in
Table 7-15.

REMU Installation

1. Set the 2W/4W jumper plugs SW103~SW403 to the appropriate positions.
2. Set the P102/104, P202/204, P302/304, and P402/404 jumper plugs for Type 1 or Type 2
signaling.
3. If the system is located within one mile of the PBX or central office, set the REMU dB PAD
switches SW101, SW201, SW301, and SW401 to the 3 (-3 dB signal level drop) position.
4. Insert the REMU (component side facing right) into the appropriate slot and apply firm, even
pressure to ensure proper mating of connectors. (For DK40i, the REMU, PEMU can be
installed only in place of the RDDU per tables in Chapter 2 – DK40i Configuration.)
Each REMU decreases the maximum system CO line and station ports by four each.
Important!
See Worksheets in Chapter 2 – DK40i Configuration for recommended REMU slot
assignments.
5. After installing the REMU, gently pull it outward. If the connectors are properly mated, a
slight resistance is felt.
Strata DK I&M 5/99
DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
Figure 7-20 and described in
Figure 7-21 and described in
7-39