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:
ä
Turn LED 01 ON if CLID and/or ANI information should be sent out the system SMDR port.
ä
Turn LED 01 OFF if Account Codes information should be sent out the system SMDR port.
NoteThe system will initialize with LED 01 OFF, i.e., Account Codes information will be sent 
out the SMDR port.
Program 77-4, LED 01/LED 02 (DK424 Release 3.2 and above): Enables CLID, ANI, and/or 
Dialed Number Identification Service (DNIS) information to be sent from the RSIU Open 
Architecture (OA) port on ACD calls only:
ä
Turn LED 01 ON if the OA port should send CLID and/or ANI information.
ä
Turn LED 01 OFF if the OA port should not send Caller ID/ANI.
ä
Turn LED 02 ON if the off port should send DNIS information.
ä
Turn LED 02 OFF if the OA port should not send DNIS information.
Notes
lProgram 77-4 allows LED 01 and LED 02 to be turned ON simultaneously to allow CLID, 
ANI, and DNIS information to be sent from the OA port on ACD calls.
lThe system will initialize with LED 01 and LED 02 OFF, i.e., no CLID, ANI, or DNIS 
information will be sent from the OA port on ACD calls. 
						

							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 circuitry. Each RCOU line can 
be programmed for DTMF or dial pulse signaling and gas tube secondary protection.
RCOU PCBs are shown in Figure 7-14 and described in Table 7-9.
RCOS Installation (Internal Option)
An RCOS PCB can be installed on the RCOU of the DK40i and DK424 for four more loop start 
lines (for a total of eight lines–the RCOS circuits provide the same options as the RCOU). Each 
RCOS circuit has gas tube secondary protection.
Excessive loudness which is caused by close proximity to a CO or PBX telephone can be fixed 
through the RCOS and RCOU decibel (dB) PAD switches. RCOS dB switches SW501, SW601, 
SW701, and SW801 and RCOU dB switches SW101, SW201, SW301, and SW401 provide a -3 
dB signal level drop between the PBX and CO when set to position 3. Switches are factory-set at 
the 0 (0 dB signal level drop) position.
See Figure 7-12 and Table 7-10 for RCOS controls, indicators, and interface connectors.
ä
To install an RCOS PCB
1. If the Strata DK system is within one mile of the PBX or CO, set the RCOS dB PAD switches 
SW501, SW601, SW701, and SW801 to the 3 (-3 dB signal level drop) position. Set the 
RCOU dB PAD switches to position 3 also.
NoteRCOU male connectors P11, P12, P13, and P14 are positioned to allow installation of the 
RCOS only in the proper position.
2. Mate the RCOS female connectors J11, J12, J13, and J14 (Figure 7-16) to the RCOU male 
connectors P11, P12, P13, and P14 (Figure 7-14).
3. Apply firm, even pressure to the RCOS to ensure proper mating of connectors. 
						

							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.
ä
To install an RCOU PCB
1. If the Strata DK system is within one mile of the PBX or Central Office, set the RCOU dB 
PAD switches SW101, SW201, SW301, and SW401 to the 3 (-3 dB signal level drop) 
position.
2. Insert the RCOU (component side facing right) into the appropriate slot and apply firm, even 
pressure to ensure proper mating of connectors. PCOU2 can be installed in place of RCOU, 
see Chapter 2 – DK40i Configuration.
3. After installing the RCOU, gently pull the PCB outward. If the connectors are properly mated, 
a slight resistance is felt. 
RCOU Programming
Program 03: Specify Code 11 for each slot that will support an a four-circuit RCOU (without an 
RCOS). Specify Code 17 for each slot that will support an RCOU equipped with an RCOS. 
NoteProgram 03 can be skipped, and Program 91 can be run instead. Program 91 recognizes 
the RCOS.
Program 10-1: Enables or disables line-to-line Conference and Direct Inward System Access 
(DISA).
Program 15: Assigns DTMF/Dial Pulse dialing, DISA, and additional attributes to each line. 
Automatic Release (AR) assignments only need to be made for loop start lines; AR is 
automatically enabled for ground start CO lines.
Program *15: Makes tenant assignments.
Program 16: Assigns lines to line groups.
Program 39: Assigns line access buttons to digital and electronic telephones.
Program 40: Assigns station access to lines (incoming and outgoing).
Program 41: Assigns station access to lines (outgoing only).
Program 42-0, 1~8: Assigns behind PBX/Centrex operation to each line.
Programs 45 ~ 48: Defines Toll Restriction for any line.
Programs 50 ~ 56: Defines Least Cost Routing assignments.
Program *50: Assigns Caller ID circuits (RCIU1, RCIU2, RCIS) to CO lines.
Program *52: Caller ID line owner station assignment.
Program 78: Assigns special ringing of lines: includes Night Ring Over Page, DISA, Remote 
Maintenance via the Internal Maintenance Modem (IMDU), and Integrated Auto Attendant.
Programs 81 ~ 89:
©Assigns lines to ring selected stations and DH groups.
©Assigns Delayed Ringing to any line. 
						

							DK40i/DK424 Universal Slot PCBs
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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 line).
J1 connector Modular connector Interface connector for CO line circuits 1 and 2.
J2 connector Modular connector Interface connector for CO line circuits 3 and 4.
PAD switch SW101 (circuits 1)
2-position slide switchEnables -3dB signal level drop for CO line 
circuit. PAD switch SW201 (circuit 2)
PAD switch SW301 (circuit 3)
PAD switch SW401 (circuit 4)
RCOS connector P11, P12, P13, 
P1410-pin male connectorInterface connector for RCOS 4-circuit loop 
start CO line unit.
Backplane Connector
P11 P12
P14
P1330
SW401
30SW301
30SW201
30SW101
Red LEDsCO Line Modular 
Jack Circuits
3 and 4CO Line Modular 
Jack Circuits
1 and 2
J1 J2
RCOS
ConnectorsRCOS
Connectors
4  3  2  1
1379 
						

							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 Interface connector for CO line circuits 7 and 8.
PAD switch SW501 (circuit 1)
2-position slide switchEnables -3dB signal level drop for CO line 
circuit. PAD switch SW601 (circuit 2)
PAD switch SW701 (circuit 3)
PAD switch SW801 (circuit 4)
RCOU connector J11, J12, J13, 
J14Female connectorInterface connector for RCOU 4-circuit loop 
start CO line unit.
Backplane Connector
SW101
0       3
PAD
0       3
PAD 0       3
PAD 0       3
PAD
CO Line Modular
Jack Circuits 1 and 2 CO Line Modular
Jack Circuits 3 and 4 CO Line LEDs
4321
SW301 SW201
SW401
1381
Figure 7-16DK40i and DK424–RCOS Controls, Indicators, and Connector 
						

							DK40i/DK424 Universal Slot PCBs
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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 for CO line circuits 1 and 2.
J2 connector Interface connector for CO line circuits 3 and 4.
PAD switch SW101 (circuit 1)
2-position slide switchEnables -3dB signal level drop for CO line 
circuit. PAD switch SW201 (circuit 2)
PAD switch SW301 (circuit 3)
PAD switch SW401 (circuit 4)
J14
J13
J12
J11 J4 J3 
30 30 30 30
SW801 SW701 SW601 SW501 RCOU
Connectors
RCOU
CONNECTORS
Trunk Modular
Jack Circuits
7 and 8Trunk Modular
Jack Circuits
5 and 6
Red LEDs
8  7  6  5
1380 
						

							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 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 RDDU dial pulse operation (see Program 30, LED 11).
Each extension can be assigned to ring a station [DN] that appears on one or multiple stations, 
Distributed Hunt or ACD Group (DK424 only), or an external telephone number selected in 
system programming. This enables calls over the same line to be routed to different stations or 
groups of stations. An extension can also be assigned to ring the maintenance modem. Each 
RDDU can be set for either wink start or immediate. All RDDU lines support DNIS and ANI 
features.
RDDU controls, indicators, and interface connectors are shown in Figure 7-18 and described in 
Table 7-12.
RDDU Installation
Note Switches are factory-set to the 0 (0 dB signal level drop) position.
1. If the KSU is located within one mile of the PBX or CO, set dB PAD switches SW101 through 
SW401 to the 3 (-3 dB signal level drop) position to control excessive loudness resulting from 
close proximity to the PBX or CO.
2. Sensitivity jumpers P101~P401 are used mostly for dial pulse operation, to adjust for dial 
pulsing at different loop lengths. If close to the central office, the sensitivity should be set for 
low (L); as the loop length increases, it should be set to medium (M), then high (H).
3. Insert the RDDU (component side facing right) into the appropriate slot and apply firm, even 
pressure to ensure proper mating of connectors. (For DK40i, RDDU must be installed per 
tables in Chapter 2 – DK40i Configuration.)
Important!Each RDDU PCB uses four station ports in software. See Worksheets in Chapter 2 – 
DK40i Configuration for recommended RDDU slot assignments.
4. After installing the RDDU, gently pull the PCB outward. If the connectors are properly mated, 
a slight resistance is felt. 
						

							DK40i/DK424 Universal Slot PCBs
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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, and additional attributes to each line.
Program *15: Makes tenant assignments.
Program 16: Assigns lines to line groups.
Program *17: Assigns intercept port for DID calls to wrong or vacant numbers.
Program 17: Assigns immediate or wink start to DID lines. Also used to assign Auto camp-on and 
no-dial tone return for DID lines. Program 17 also Assigns DID lines to route per DNIS and ANI 
options (Program 71 and 72) or DID numbers (Program *09).
Program 30: Disables RRCS for dial pulse operation.
Program 39: Assigns line access buttons to digital and electronic telephones.
Program 40: Assigns station access to lines (incoming and outgoing).
Program 41: Assigns station access to lines (outgoing only).
Program 42-0, 1~8: Assigns behind PBX/Centrex operation to each line.
Programs 45~48: Defines toll restriction for any line.
Programs 50~56: Defines least cost routing assignments.
Programs 71 (1~5): Assigns DNIS or ANI option to DID lines.
Programs *71~*73: Assigns telephone to ring called [DN].
Program 93: Assigns names to lines. 
						

							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 connector Modular connection Interface connector for DID line circuits 3 & 4
DID line circuit 1 CD122 Red LED (top)
Lights to indicate line circuit is in operation. 
(Trunk indicator will not light unless RDDU is 
connected to a DID line.) DID line circuit 2 CD222 Red LED
DID line circuit 3 CD322 Red LED
DID line circuit 4 CD422 Red LED (bottom)
Jumper plug P101
3-terminal jumper plug Adjusts for dial pulsing at different loop lengths. Jumper plug P201
Jumper plug P301
Jumper plug P401
Backplane Connector
4
J1 J2
P401P301 P201 P101
SW401SW301 SW201 SW101
LEDs32
1RDDU
RDDU H M LH M L H M LH M L 3  0
3  0 3  0
3  0
1385
Figure 7-18 RDDU Controls, Indicators, and Interface Connectors 
						

							DK40i/DK424 Universal Slot PCBs
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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, 028)
cordless digital telephone (DKT2004-CT)
standard circuits
standard telephones
voice mail ports
off-premises stations
other similar devices
alternate BGM source (circuit 2 only)
auto attendant digital announcer
message waiting lamp 
Older Version(s): none
An optional Standard Telephone Interface Subunit (RSTS) can be attached to the RDSU to provide 
two more standard telephone ports (circuits 3 and 4).
RDSU and RSTS controls and interface connectors are shown in Figure 7-19. RDSU interface 
connectors are described in Table 7-13.
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.
CAUTION!To prevent system malfunction, DO NOT install the RDSU in slot 18 of the 
DK40i system.
Installing R48S Ring Generator (Internal Option)
An optional R48S unit can be connected to the RDSU or RSTU to change the standard telephone 
loop voltage from -24VDC to -48VDC, extending the standard telephone circuit loop length 
(including the resistance of the phone) from 600 ohms to 1200 ohms. The features provided by the 
R48S apply to the RSTS circuits as well as the basic RDSU standard telephone circuits.
äTo install the R48S on the RDSU
äMate the R48S connectors R6 and R7 with the RDSU connectors R6 and R7. RDSU 
connectors P6 and P7 are positioned to allow installation of the R48S only in the proper 
position (Figure 7-26).