Printed Circuit Board (Pcb) Installation; Base Ksu Pcbs - Toshiba Strata DK14 Installation And Maintenance Manual

Printed Circuit Board (PCB) Installation

This section details Strata DK40i system PCBs installation into the Base and Expansion KSUs.
Also described are optional configuration information and programming considerations for each
PCB.

Base KSU PCBs

The Strata DK40i processor is built into the motherboard (TMAU2) and comes with eight digital
telephone circuits (ports). The line circuits are on the TCOU or TDDU PCBs, which attach to the
P10, P11 and P12 connectors on the TMAU. The PCBs that can be installed into a DK40i KSU are
shown in Table 3-4.
Table 3-4 DK40i Base KSU PCBs
PCB
TCOU Four loop start CO line circuits
TDDU Four DID line circuits
TBSU 2 BRI (S/T) circuits
TCIU2 Four caller ID circuits
KSTU2 Four standard telephone circuits
Up to two serial interfaces
TSIU
(TTY and SMDR)
Recognizes DTMF tones generated by a standard
K5RCU2,
telephone and is required for DISA, Tie and DID
K5RCU or
lines and the DK40i built-in Auto Attendant. Also
K4RCU3
used to detect busy tone for the ABR feature.
KKYS Automated Attendant
Toshiba recommends installing the Base KSU option PCBs, K5RCU2, K5RCU or K4RCU3 and/
or KSTU2, before mounting the Base KSU on the wall. Install the Expansion KSU per
then install the Expansion KSU option PCBs.
The Base KSU slots 00~14 are automatically assigned the following codes in Program 03 when
the system is turned on and the Base KSU PCBs are installed.
Slot 00: Code 91 without K4RCU3; Code 92 with K4RCU3; Code 98 with K5RCU2 or K5RCU
Slot 11: Code 62 eight digital telephones with OCA/DIU, 64 for OCA/DIU/DSS.
Slot 12: Code 11 for TCOU, 16 for TDDU or 77 for TBSU (four loop, four DID lines or two BRI
circuits).
Note If installing TBSU, set each BRI circuit for station side or line side before installing more
PCBs. Each BRI station circuit uses two station ports and each BRI line circuit uses two
CO lines.
Slot 13: Code 31, four KSTU2 ports
Slot 14: Code 81, four TCIU2 circuits
Strata DK I&M 5/99
Provides
Printed Circuit Board (PCB) Installation
Installs On Comments
Only one TCOU, TBSU or
TMAU2
TDDU can be installed on the
motherboard
motherboard.
To prevent system
TCOU malfunction, do not install a
TCIU1 in the DK40i system.
Only one TSIU can be
installed per DK40i system.
When installed, the TSIU
TMAU2
does not use a slot.
motherboard
K5RCU2,
K5RCU or
K4RCU3
DK40i Installation
Page 3-9,
3-21