Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

DK40i/DK424 Universal Slot PCBs
PEPU2 External Page Interface Unit
Strata DK I&M    5/997-37
DK40i/DK424 Universal 
Slot PCBsInstalling RSTS (Internal Option)
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Mate the RSTS connectors P2~P5 with the RDSU connectors P2~P5. RDSU connectors 
P2~P5 are positioned to allow installation of the RSTS only in the proper position (Figure 
7-19).
RDSU Installation
1. Ensure the SSTU subunit and optional subassemblies are securely attached to the RDSU 
(Figure 7-19).
2. Insert the RDSU into the appropriate slot,...

DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
7-38Strata DK I&M    5/99
RDTU
T1 Interface Unit
See Chapter 6 – DK424 T1 for RDTU PCB installation and programming information.
RSTS
R48S
RDSU1
P3
P4P2
P5P6
P7
P6P3
P4P2
P5
P7
1377
Figure 7-19 RDSU, RSTS PCBs 

DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
Strata DK I&M    5/997-39
DK40i/DK424 Universal 
Slot PCBsREMU
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...

DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
7-40Strata DK I&M    5/99
PEMU Installation
1. Determine if the E&M Tie lines will be configured for 2- or 4-wire transmission.
2. Set the 2W/4W jumper plugs P103, P203, P303, and P403 to the appropriate positions.
3.Set the FG jumper plug P3 to the “2-3” position.
4. Set all GND/BAT jumper plugs to the “BAT” position for connection to the telephone 
network.
NoteThe “GND” position is used to connect PEMU circuits back-to-back on premises only, 
1000...

DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
Strata DK I&M    5/997-41
DK40i/DK424 Universal 
Slot PCBs
Figure 7-20 REMU PCB Table 7-14 REMU Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
Tie trunk circuits 1~4 (CD102, 202, 
302,  and 402)Red LED Lights to indicate that Tie line is in operation. 
E&M Tie trunk connector circuits 
1~4 (J101, 201, 301, and 401)Modular connector Interface connector for E&M Tie line circuit.
PAD switch SW101 (circuit...

DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
7-42Strata DK I&M    5/99
Table 7-15 PEMU Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
Tie trunk circuit 1~4 (CD102, 202, 
302, and 402)Red LED Lights to indicate that Tie line is in operation. 
E&M Tie line connector J101, 201, 
301,and 401 (circuit 1~4)Modular connector Interface connector for E&M Tie line circuit.
FG jumper P3 3-terminal jumper Enables or disables -48VDC ground to FG.
GND/BAT jumper...

DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
Strata DK I&M    5/997-43
DK40i/DK424 Universal 
Slot PCBsRGLU2
Loop/Ground Start CO Line Interface Unit
System:DK40i Expansion KSU, DK424
Circuits per PCB:four line circuits
Interfaces with:loop or ground start lines
Older Version(s): RGLU1 (does not have hookflash to CO)
The RGLU2 also provides ring detection, dial outpulsing, and hold. Each RGLU2 line can be 
programmed for DTMF or dial pulse signaling and gas tube secondary protection.
RGLU2...

DK40i/DK424 Universal Slot PCBs
RDTU T1 Interface Unit
7-44Strata DK I&M    5/99
Table 7-16 RGLU2 Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
Line circuit 1
Red LEDLights to indicate that line circuit is in operation. 
CO line indicator will not light unless RGLU2 is 
connected to a line. Line circuit 2
Line circuit 3
Line circuit 4
J1 connector Modular connectorRJ14 modular Interface connector for trunk 
circuits 1 and 2.
J2 connector Modular...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
Strata DK I&M    5/997-45
DK40i/DK424 Universal 
Slot PCBsRSIU, RSIS, RMDS
RS-232/Modem Interface Unit
System:DK424
Circuits per PCB:four interface ports
Interfaces with:SMDI or Toshiba Proprietary RS-232 voice mail
ACD SMIS computer
SMDR printer or SMDR call accounting machine
DKAdmin/DKBackup PC or maintenance terminal (locally or remotely)
Open-architecture application computer system–receives ANI, DNIS or CLID digits from...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
7-46Strata DK I&M    5/99
©Parity = none
©Stop bits = 1
Only one RSIU can be installed per DK424 system. When the RSIU PCB is installed, the RSSU, 
PIOU2, PIOUS2, IMDU modem, and PEPU PCBs can still be installed with all of their respective 
paging, modem, and RS-232 port functions available; however, five RS-232/modem ports can be 
installed in one DK424 system.
When installed together in the same DK424 system, the RSIU, PIOU2,...