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)
ä
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, and apply firm, even pressure to ensure proper 
mating of connectors. (See Figure 8-22 on Page 8-23.)
CAUTION!To prevent system malfunction, DO NOT install the RDSU in slot 18 of the 
DK40i system. See Chapter 2 – DK40i Configuration.
3. After installing the RDSU gently pull the RDSU outward. If the connectors are properly 
mated, a light resistance is felt. 
RDSU Programming
ä
Enter Code 27 in Program 03 for a non-optioned RDSU, or enter Code 28 for an RDSU that 
support off-hook call announce and data interface units. To program the RDSU standard 
telephone ports (including the RSTS), see “RDSU Programming” on Page 7-37. To program 
the RDSU digital telephone ports, see “PDKU2 Programming” on Page 7-6. 
ä
If there are no RDSU options, skip Program 03 can be skipped, and run Program 91 instead.
WARNING! The protective shield on the back of the RDSU is designed to protect the 
installer from potentially hazardous ring voltage. Do not remove this 
shield.
Table 7-13 RDSU, RSTS Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
RSTS connector P2/P3
10-pin connectorConnector for RSTS subassembly that provides 
two standard telephone circuits.
RSTS connector P4/P5
R48S connector to P6 8-pin connector
Interface connector for R48S.
R48S connector to P7 6-pin connector 
						

							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 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.)
NoteFor 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 Figure 7-20 and described in 
Table 7-14.
PEMU controls, indicators, and interface connectors are shown in Figure 7-21 and described 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.)
Important!Each REMU decreases the maximum system CO line and station ports by four each. 
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. 
						

							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 feet maximum (E&M lead wires must be crossed).
5. Insert the PEMU (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.)
Important!Each PEMU decreases the maximum system CO line and station ports by four each. 
See Worksheets in Chapter 2 – DK40i Configuration and Chapter 4 – DK424 
Configuration for recommended PEMU slot assignments.
6. After installing, gently pull the PEMU outward. If the connectors are properly mated, a slight 
resistance is felt.
PEMU, REMU Programming
Program 03: Specify Code 13 for slots that support PEMUs and make sure RRCS is enabled for 
DTMF operation.
Program 04: Specifies [PDNs]. These are also the numbers that must be received by incoming Tie 
lines to route calls to the proper telephones (see Program 17, LED 05).
Program 10-1: Enables/disables two-line conference.
Program 15: Assigns tandem connections and dial pulse option to Tie lines.
Program 17: Assigns immediate or wink start to REMU Tie lines.
Important!Also used to turn on Tie line dial tone return.
NoteWhen a PEMU or REMU is installed in a system, it automatically assumes the next four 
consecutive CO line and station port numbers.
Program 30: Disables RRCS for dial pulse operation.
Program 71 (1~5) and Program 72: Tie/DID DNIS assignments.
Program *71~*73: DH/Tie/DID to [DN] ringing assignments.
Program 93: Assigns a name to a Tie line 
						

							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 1)
2-position slice 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)
TYP1/TYP2 jumper plugs P102/
104
3-terminal jumperEnables line circuit to be set for Type 1 or Type 
2 signaling. TYP1/TYP2 jumper plugs P202/
204
TYP1/TYP2 jumper plugs P302/
304
TYP1/TYP2 jumper plugs P402/
404
2W/4W switch 102 (circuit 1)
2-position slice switchSelects 2- or 4-wire configuration for E&M Tie 
line circuit. 2W/4W switch 202 (circuit 2)
2W/4W switch 302 (circuit 3)
2W/4W switch 402 (circuit 4)
Backplane Connector
LEDs
J201
J101
TYP1
TYP2TYP1
TYP2
SW4010 34321 
J401
SW301
0 3P1020
3
SW101
0
3
TYP1
TYP2TYP1
TYP2
P304
P302
P404
P402
TYP1
TYP2
P202
P204
P104
TYP1
TYP2TYP1
TYP2
TYP1
TYP2
REMUSW201
SW102
SW202
SW302
SW402
2W 4W
2W 4W2W 4W
2W 4W
J3011383 
						

							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 P101 
3-terminal jumper
(Tie line 1)
Enables -3 dB signal level drop for line circuit. GND/BAT jumper P102
GND/BAT jumper P201
3-terminal jumper
(Tie line 2)
GND/BAT jumper P202
GND/BAT jumper P301
3-terminal jumper
(Tie line 3)
M-lead origination for Tie line (must be in BAT 
position per FCC requirements. GND/BAT jumper P302
GND/BAT jumper P401
3-terminal jumper
(Tie line 4)
GND/BAT jumper P402
2W/4W switch P103, 203, 303, 
and 402 (circuit 1~4)3-terminal jumperSelects 2- or 4-wire configuration for E&M Tie 
line circuit.
Ground/Battery
Jumpers 
(Leave In 
Factory Positions) Backplane Connector
Tie Line 1 Tie Line 4
2W
4W2W
4W
2W
4W
4     3     2    1 1 2 32W
4W
J101 J201 J301 J401 FG
P103 P203P303 P403
Tie Line 3 Tie Line 2
P3
P401
P402
P301 P302P201 P202
P102
P101
SP1020
-48 Volt
Supply
LEDs
1384
Figure 7-21 PEMU PCB 
						

							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 controls, indicators, and interface connectors are shown in Figure 7-22 and described in 
Table 7-16.
RGLU2 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 central office when set to the 3 
position. Switches are factory set to the 0 (0 dB signal level drop) position.
ä
To install an RGLU2 PCB
1. If the DK KSU is within one mile of the PBX or central office, set the dB PAD switches 
SW101, SW201, SW301, and SW401 to the 3 (-3 dB signal level drop) position.
2. Set each line for ground start (GND) or loop start (LOOP) by setting the following jumper 
plugs: SW103 for line 1, SW203 for line 2, SW303 for line 3, and SW403 for line 4.
3. Insert the RGLU2 (component side facing right) into the appropriate slot and apply firm, even 
pressure to ensure proper mating of connectors. RGLU2 can be installed in place of RCOU, 
per tables in Chapter 2 – DK40i Configuration.
4. After installing the RGLU2, gently pull the PCB outward. If the connectors are properly 
mated, a slight resistance is felt. 
RGLU2 Programming
Programming for the RCOU and RGLU2 is essentially the same. See “RCOU Programming” on 
Page 7-29, for an overview of RGLU2 programming. 
						

							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 connectorRJ14 modular Interface connector for trunk 
circuits 3 and 4.
PAD switch SW101 (circuit 1)
2-position slice switch Enables -3dB signal level drop for trunk circuits. PAD switch SW201 (circuit 2)
PAD switch SW301 (circuit 3)
PAD switch SW401 (circuit 4)
LOOP/GND jumper SW103 
(configures line 1)
3-terminal jumper Used to configure line for loop or ground start. LOOP/GND jumper SW203 
(configures line 2)
LOOP/GND jumper SW303 
(configures line 3)
LOOP/GND jumper SW403 
(configures line 4)
Backplane Connector
4    3    2    1
J1 J2
SW401
30PAD
SW301 SW201 SW101
RGLU
Red LEDs
30PAD30PAD30PAD
SW403
LOOPGND
SW303
LOOPGND
SW203
LOOPGND
SW103
LOOPGND
1382
Figure 7-22 RGLU2 PCB 
						

							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
the DK424 on ACD calls
Older Version(s): none
The RSIU is a standard plug-in type PCB that must be installed into the first universal slot of the 
DK424 base cabinet. The RSIU PCB provides one standard RS-232 port (modular jack) when 
ordered from the factory; this port can be configured in system programming to support any one of 
the hardware options listed above.
The RSIU can be equipped with up to three more optional RS-232 ports (total of four RS-232 
ports) or with two optional RS-232 ports and one modem port (total of three RS-232 ports and one 
modem port). The optional RS-232 ports are provided by installing RSIS piggy-back PCBs onto 
the RSIU PCB. The optional built-in modem is provided by installing an RMDS piggy-back PCB 
onto the RSIU (see Figure 7-38 in Chapter 8 – DK40i/DK424 Universal Slot PCB Wiring).
The RSIS PCB can support any one of the hardware devices listed above via its RS-232 modular 
jack. The RMDS PCB can function two ways: the RMDS can operate like an RSIS allowing it to 
support any one of the hardware devices listed above locally from its RS-232 modular jack; or, the 
RMDS can operate as a 1200 bps (bits-per-second) or 2400 bps system remote maintenance 
modem.
The RMDS PCB function (modem or RS-232 port) is set in a system program option. The RMDS 
can be set for one function only; it cannot support both functions simultaneously. When configured 
as a modem, the RMDS PCB supports only the DK424 remote maintenance, ASCII terminal, or 
DKBackup, and DKAdmin functions, and does not simultaneously support SMDI, SMIS, SMDR, 
etc. (See Figure 8-36 on Page 8-37.)
The total bits-per-second (bps) data rate of the four RSIU, RSIS, RMDS (RS-232/modem) ports 
combined cannot exceed 9600 bps. The RSIU, RSIS RS-232 ports can be individually set in 
system programming to operate at 1200 bps, 4 ports max.; 2400 bps, 3 ports max.; 4800 bps, 2 
ports max.; or 9600 bps, 1 port max.; or, any other combination that does not exceed 9600 bps. The 
RMDS modem function can be set to operate at 1200 bps or 2400 bps; however, if the RMDS port 
is used as a RS-232 port instead of a modem, it can also be set for 4800 bps or 9600 bps.
The TTY and modem function cannot operate on separate RSIU, RSIS, RMDS ports 
simultaneously. If both functions are programmed at the same time on separate ports, the function 
of the lowest numbered RSIU, RSIS, RMDS port (TTY or modem) will be active.The 
communication parameters for all RSIU, RSIS, RMDS port function types except the SMDR are:
©Data word bits = 7
©Parity = even
©Stop bits = 1
The communication parameters for an RSIU, RSIS SMDR port is:
©Data word bits = 8 
						

							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, PIOUS2, RSSU port 
functions are identified and enabled (turned ON/OFF) in system programming. If the same 
function is programmed for an RSIU port and a PIOU2, PIOUS2, RSSU port, only the RSIU port 
will function.
RSIS, RMDS Piggy-Back Installation
1. Install all RSIS and RMDS PCBs on the RSIU PCB before installing the RSIU into the 
DK424. Each RSIS or RMDS piggy-back PCB is installed on the RSIU PCB as shown in 
Figure 4-38.
Up to three RSIS PCBs can be installed on the RSIU PCB; only one RMDS PCB can be 
installed on the RSIU. The function and bit-per-second (bps) data rate of each RSIS and 
RMDS circuit port is set in Program 76 as described in the Programming Part that follows.
2. After installing all RSIS, RMDS PCBs, install the RSIU into the DK424 per the following 
instructions.
RSIU Installation
1. The RSIU must be installed only in slot 11 of the base cabinet (see Figure 7-23 to install the 
RSIU PCB).
2. A PDKU or PEKU PCB must be installed in slot 12 of the base cabinet to support the 
programming telephone.
3. The first 8-station ports (000-007) appear on the PDKU or PEKU as installed in slot 12. The 
programming telephone will then be on the 6th circuit (port 005; or, 013 until Program 03 
Code 49 is set for slot 11) of the PDKU in slot 12.
The function and bit-per-second (bps) data rate of the RSIU or RMDS, RS-232 circuit port is 
set in Program 76 as described in the Strata DK Programming Manual.
All information provided in the “RSIU Installation” on Page 7-46 applies to installing an RSIU in 
an existing system. Hence, most PCBs must be moved to the next highest slot.