Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-27
DK40i/DK424 Universal 
Slot PCBsProgram 60-1, Key 01: Determines which information will be sent out the system SMDR port, i.e., 
system Account Codes or CLID and/or ANI telephone numbers:
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Turn LED 01 ON if CLID and/or ANI information should be sent out the system SMDR port.
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Turn LED 01 OFF if Account Codes information should be sent out the system SMDR port.
NoteThe system will initialize with LED 01 OFF,...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-28Strata DK I&M    5/99
RCOU, RCOS
Four-Circuit Loop Start CO Line Interface Unit
System:RCOU–DK40Expansion KSU, DK424
RCOS–DK40i, DK424
Circuits per PCB:four loop start CO line circuits
Interfaces with:loop start lines
Older Version(s):PCOU2 (does not have ABR circuitry, uses RCTU, K4RCU ABR circuits)
PCOU1(has ABR circuitry, identical and interchangeable w/PCOU2)
The RCOU also provides ring detection, dial outpulsing, and hold...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-29
DK40i/DK424 Universal 
Slot PCBsRCOU Installation
NoteThe decibel (dB) PAD switches SW101, SW201, SW301, and SW401 control excessive 
loudness resulting from close proximity to a Central Office or PBX telephone office by 
providing a -3 dB signal level drop to, or from, the PBX or CO when set to the 3 position. 
Switches are factory-set to the 0 (0 dB signal level drop) position.
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To install an RCOU PCB
1. If...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-30Strata DK I&M    5/99
Programs *81, *84, *87: Assigns which [DN] will flash when the CO line rings a telephone.
Program 93: Assigns names to lines.
Figure 7-15 RCOU PCB Table 7-9 RCOU Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
CO line circuit 1~4 indicators Red LEDLights to indicate that line circuit is in operation. 
(CO line indicator will not light unless RCOU is 
connected to a CO...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-31
DK40i/DK424 Universal 
Slot PCBs
Table 7-10 RCOS Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
CO line circuit 5~8 Red LEDLights to indicate that line circuit is in operation. 
(CO line indicator will not light unless RCOU is 
connected to a CO line).
J3 connector Modular connector Interface connector for CO line circuits 5 and 6.
J4 connector Modular connector...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-32Strata DK I&M    5/99
Figure 7-17DK424 – PCOU2 PCB Table 7-11 PCOU2 Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
CO line circuit 1 CD112
Red LEDLights to indicate that line circuit is in operation. 
CO line indicator will not light unless PCOU is 
connected to a CO. CO line circuit 2 CD212
CO line circuit 3 CD312
CO line circuit 4 CD412
J1 connector
Modular connectorInterface connector...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-33
DK40i/DK424 Universal 
Slot PCBsRDDU
Direct Inward Dialing Line Interface Unit
System:DK40i Expansion KSU, DK424
Circuits per PCB:four DID lines
Interfaces with:DID (one or two-way) lines
Older Version(s): none
The RDDU provides four Direct Inward Dialing (DID) lines, each of which can have a single 
office code along with a block of extensions 
NoteFor the system to recognize the DTMF tones generated by incoming...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-34Strata DK I&M    5/99
RDDU Programming
Program 03: Specify Code 16 for slots that support RDDUs and make sure RRCS is enabled for 
DTMF operation. Program 03 can be skipped, and Program 91 can be run instead.
Program *09: Assigns DID line extensions to route to station [PDNs] and IMDU or RMDS 
Remote Maintenance (see Program 17 below).
Program 10-1: Enables or disables two-line conference.
Program 15: Assigns DTMF/dial pulse dialing,...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-35
DK40i/DK424 Universal 
Slot PCBs
Table 7-12 RDDU Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
PAD switch SW101 (circuit 1)
3-position slide switch Enables -3 dB signal level drop for line circuit. PAD switch SW201 (circuit 2)
PAD switch SW301 (circuit 3)
PAD switch SW401 (circuit 4)
J1 connector Modular connection Interface connector for DID line circuits 1 & 2
J2...

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
7-36Strata DK I&M    5/99
RDSU
Digital/Standard Telephone Interface Unit
System:DK40i Expansion KSU only, DK424
Circuits per PCB:(with RSTS) four standard telephone (circuits 1~4)/four digital telephone (circuits 5~8)
(without RSTS) two standard telephone circuits (1 and 2)/four digital telephone circuits
Interfaces with:digital circuits 
digital telephones (with or w/o RPCI-DI or ADM)
PDIU-DS
DDCB (circuit 5 only–ports 004, 012, 020,...