Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
Strata DK I&M    5/997-47
DK40i/DK424 Universal 
Slot PCBs
Figure 7-23 RSIU, RSIS, RMDS PCB Installation
RSIS1A
J4J3
J1
117
117117
J2
J4J3
J1
117
117117
J2
RMDS1A
CAUTION:
Do not connect 
telephone circuit 
Tip/Ring to J4
(See Note 2)
RMDS Top View RSIS Top View
RSIU1A V.1
RSIU1
J4
J1
P2P4
P5
P8
P11 P3
P7
P9
J3 J2
117
117117
J1
UP
UP
J4J3 J2
117
117117
J1
UP
UP
J4J3 J2
117
117117
J1
UP
UP
Bottom View (solder side) Port #4...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
7-48Strata DK I&M    5/99
ä
To move the PCB to the next highest slot
1. Identify (mark) the attendant console and all station PCB wiring connectors so they can be 
removed and then reinstalled on the same PCB later (console station PCBs include: PDKU, 
RDSU, PEKU, PESU, RSTU, PSTU and RATU PCBs).
2. Turn system power OFF.
3. Disconnect the connectors from the attendant console and all station PCBs listed in Step 1.
4. Remove all...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
Strata DK I&M    5/997-49
DK40i/DK424 Universal 
Slot PCBsä
To install an RSIU PCB into an existing system with DID and/or Tie lines
NoteThe steps in “RSIU Installation” on Page 7-46 apply to installing an RSIU into an existing 
system. Hence, most PCBs must be moved to the next highest slot using the following 
steps.
1. Identify (mark) all PCB wiring connectors so they can be removed and then reinstalled onto 
the same station...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
7-50Strata DK I&M    5/99
lThe 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.
lWhen uploading Program 76-1 with DKAdmin or DKBackup, the data will not change until 
the system power is cycled.
Program 76-2X-Z: Assigns each...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
Strata DK I&M    5/997-51
DK40i/DK424 Universal 
Slot PCBsRSSU
PC Interface Unit
System:DK40i Expansion KSU, DK424
Circuits per PCB:one RS-232 connection
Interfaces with:TTY jack
Older Version(s): none
The RSSU contains one RS-232 serial port for connecting an SMDI, SMIS processor, DKAdmin/
DKBackup PC or external modem. 
One optional RSSU maintenance interface PCB can be used for connecting a maintenance PC or 
external modem...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
7-52Strata DK I&M    5/99
Table 7-17 RSSU Controls, Indicators, and Connectors
Control/Indicator/ConnectorType of ComponentDescription
TTY interface connector J3 Dual modular connectorInterface connector for maintenance terminal/
external modem.
Backplane Connector
TTY SMDR (not used) J3
1878
RSSU
Figure 7-25 RSSU PCB 

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
Strata DK I&M    5/997-53
DK40i/DK424 Universal 
Slot PCBsRSTU2
Standard Telephone Interface Unit
System:DK40i Expansion KSU, DK424
Circuits per PCB:eight standard telephone circuits
Interfaces with:standard telephones
voice mail ports
off-premises stations
other similar devices
alternate BGM source (circuit 2 only)
auto attendant digital announcer
message waiting lamp (RSTU2 only)
Older Version(s): RSTU1–80-VRMS sine wave ring...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
7-54Strata DK I&M    5/99
External Options
W1 Ring Generator Switch Configuration (PSTU1 and PSTU2)
ä
On the PSTU1 or PSTU2, ensure the W1 switch is set to the “H” (190V P-P) position for 
initial installation. The “L” (130V P-P) position is used if devices connected to the PSTU1 or 
PSTU2 experience ring trip.
Standard Telephone Message Waiting Lamp Control
No steps required here.
RSTU2 Installation
1. Make sure the...

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
Strata DK I&M    5/997-55
DK40i/DK424 Universal 
Slot PCBs
RSTU2 Programming
Program 03: Specify code 31 for all slots that have RSTUs and PSTUs installed.
NoteIf there are no RSTU, RSTU2 or PSTU options, Program 03 can be skipped, and Program 
91-1 or 91-9 can be run instead.
Program 10-2: Sets standard telephone ringing option.
Program 19: Used for BGM connection.
Program 21: Assigns standard telephone ports to modem pools....

DK40i/DK424 Universal Slot PCBs
RSIU, RSIS, RMDS RS-232/Modem Interface Unit
7-56Strata DK I&M    5/99
RMCU/RCMS
E911 CAMA Trunk Direct Interface
System:DK424
Circuits per PCB:four circuits
Interfaces with:enhanced 911 locator services
Older Version(s): none
The E911 CAMA Trunk Direct Interface card (RMCU) enables cost-effective connection to the 
Enhanced 911 locator services without third-party equipment. Figure 7-31 shows the RMCU. The 
RMCU supports two subassemblies (RCMS) that provide a total of up...