Toshiba Strata Dk14, Dk40i, Dk424 Installation And Maintenance Manual

							ISDN Interfaces
RPTU Call Monitoring (PRI)
Strata DK I&M 5/9914-15
ISDN Interfaces
Figure 14-10 Outgoing Call Connect and Release
01;14’446  Rx:[SAPI]00 C [TEI]000 [FRAME]RR    P [N(R)]004 
01;14’449 Tx :[SAPI]00 C [TEI]000 [FRAME]RR    P [N(R)]002 
01;14’456 Tx :[SAPI]00 R [TEI]000 [FRAME]RR    F [N(R)]002 
01;14’460  Rx:[SAPI]00 R [TEI]000 [FRAME]RR    F [N(R)]004 
01;19’450 Tx :[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]004 [N(R)]002 
              PD = Q.931(08)
              CR = 02 0003
              MT = SETUP(05)
              04 03 80 90 A2 18 03 A9 83 97 70 08 C1 35 38 33  ..........p..583
              33 30 30 31                                      3001
01;19’466  Rx:[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]005 
01;19’878  Rx:[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]002 [N(R)]005 
              PD = Q.931(08)
              CR = 02 8003
              MT = CALL PROC(02)
              18 03 A9 83 97                                   .....
01;19’888 Tx :[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]003 
01;19’924  Rx:[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]003 [N(R)]005 
              PD = Q.931(08)
              CR = 02 8003
              MT = ALERT(01)
              18 03 A9 83 97                                   .....
01;19’932 Tx :[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]004 
01;25’464  Rx:[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]004 [N(R)]005 
              PD = Q.931(08)
              CR = 02 8003
              MT = CONN(07)
              18 03 A9 83 97                                   .....
01;25’476 Tx :[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]005 
01;25’785 Tx :[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]005 [N(R)]005 
              PD = Q.931(08)
              CR = 02 0003
              MT = CONN ACK(0F)
01;25’799  Rx:[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]006 
01;46’127  Rx:[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]005 [N(R)]006 
              PD = Q.931(08)
              CR = 02 8003
              MT = DISC(45)
              08 02 80 90                                      ....
01;46’138 Tx :[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]006 
01;46’449 Tx :[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]006 [N(R)]006 
              PD = Q.931(08)
              CR = 02 0003
              MT = REL(4D)
              08 02 80 90                                      ....
01;46’464  Rx:[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]007 
01;46’784  Rx:[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]006 [N(R)]007 
              PD = Q.931(08)
              CR = 02 8003
              MT = REL COMP(5A)
              08 02 80 90                                      ....
01;46’795 Tx :[SAPI]00 R [TEI]000 [FRAME]RR      [N(R)]007 
02;16’659 Tx :[SAPI]00 C [TEI]000 [FRAME]RR    P [N(R)]007 
02;16’670  Rx:[SAPI]00 R [TEI]000 [FRAME]RR    F [N(R)]007 
02;22’661  Rx:[SAPI]00 C [TEI]000 [FRAME]INFO    [N(S)]007 [N(R)]007 
              PD = Q.931(08)
              CR = 02 0004
             
2760 
						

							ISDN Interfaces
RPTU Call Monitoring (PRI)
14-16Strata DK I&M 5/99
Performance Monitoring
The performance of the RPTU can be monitored using the Data Dump Mode. This requires:
©RSIU, RSIS, PIOU or PIOUS PCB TTY port.
©ASCII terminal or PC with communications software (such as ProComm).
©IMDU or RMDS modem or Hayes compatible modem for remote monitoring.
The RPTU monitoring feature provides a download of PRI errors detected as shown in Figure 
14-11. This data can be stored to a file and/or printed when using a PC with communications 
software.
There are no time parameters for the error report, so the time between error-count increments must 
be monitored manually. The counter is reset after 15 registrations and begins again from zero. 
Basically the error count of any error category should not increase within 24-hour periods.
ä
To dump the data (PRI ERROR DISPLAY) from a terminal or PC (local or remote)
1. Establish communications between the DK TTY port and the terminal or PC using a 
communications software.
2. Enter the security code, and press Enter
 (or Return
).
3. At the >MODE
 prompt, type DUMP
 (must be all caps), and press Enter
 (or Return)
. The >D
 
prompt displays on your screen.
4. At the >D
 prompt, type PRIERR
 and press Enter
 (or Return
). The display (see Figure 
14-11) shows all RPTU PCBs (PRI NO=1~PRI NO=8), even if the associated RPTU (1~8) is 
not installed. The ERROR counter can only be reset by turning the DK424 OFF and ON.
ä
To exit the dump mode
ä
At the >D
 prompt, type QUIT
, press Enter
 (or Return
); the >MODE
 prompt displays. 
						

							ISDN Interfaces
RPTU Call Monitoring (PRI)
Strata DK I&M 5/9914-17
ISDN Interfaces
Figure 14-11 RPTU Performance Monitor PrintoutPRI ERROR DISPLAY
PRIERR
PRI NO = 1
SYNCHRO BIT ERROR = XX TIMES (1 TIME = 1024 ERRORS)
BIPOLAR VIOLATION ERROR =  XX TIMES (1 TIME = 256 X 256 ERRORS)
SLIP ERROR = XX TIMES (1 TIME = 256 ERRORS)
CRC ERROR = XX TIMES (1 TIME = 256 ERRORS)
PRI NO = 2
SYNCHRO BIT ERROR = XX TIMES (XX = 00~15)
BIPOLAR VIOLATION ERROR = XX TIMES
SLIP ERROR = XX TIMES
CRC ERROR = XX TIMES
PRI NO = 3 = XX TIMES
SYNCHRO BIT ERROR = XX TIMES
BIPOLAR VIOLATION ERROR = XX TIMES
SLIP ERROR = XX TIMES
CRC ERROR = XX TIMES
PRI NO = 4
SYNCHRO BIT ERROR = XX TIMES
BIPOLAR VIOLATION ERROR = XX TIMES
SLIP ERROR = XX TIMES
CRC ERROR = XX TIMES
PRI NO = 5
SYNCHRO BIT ERROR = XX TIMES
BIPOLAR VIOLATION ERROR = XX TIMES
SLIP ERROR = XX TIMES
CRC ERROR = XX TIMES
PRI NO = 6
SYNCHRO BIT ERROR = XX TIMES
BIPOLAR VIOLATION ERROR = XX TIMES
SLIP ERROR = XX TIMES
CRC ERROR = XX TIMES
PRI NO = 7
SYNCHRO BIT ERROR = XX TIMES
BIPOLAR VIOLATION ERROR = XX TIMES
SLIP ERROR = XX TIMES
CRC ERROR = XX TIMES
PRI NO = 8
SYNCHRO BIT ERROR = XX TIMES
BIPOLAR VIOLATION ERROR = XX TIMES
SLIP ERROR = XX TIMES
CRC ERROR = XX TIMES
Error Message Action
Synchro Bit Error Increments each time the RPTU detects 1024 synchronization bit errors.
Bipolar Violation 
ErrorIncrements each time the RPTU detects 6.55 x 104 bipolar violations.
Slip Error Increments each time the RPTU detects 256 slips.
CRC Error Increments each time the RPTU detects 256 CRC-6 errors. The RPTU must be in the ESF 
mode. 
						

							ISDN Interfaces
SMDR Output for ISDN
14-18Strata DK I&M 5/99
SMDR Output for ISDN
See Figure 10-20 on Page 10-36 for a sample SMDR printout and descriptions of each 
column.
RBSU/RBSS and TBSU Interface Units
System:DK424 and DK40i, Release 4.1 and above
Circuits per PCB:2 circuits (2B + D each circuit)
Interfaces with:ISDN BRI S/T when connected to the Public Network or a BRI S-type, TE-1, 
or TA devices when connecting to ISDN station equipment
Older Version(s):none
The Strata DK424 and DK40i Release 4.1 system supports the RBSU/RBSS interface 
unit according to the common control units resident in the system shown in Ta b l e  
14-7. The DK40i only supports the TBSU.
RBSU/RBSS switches, jumpers, and connectors are shown in Figures 14-14 and 
14-15 on Page 14-21 and described in Table 14-8. 
TBSU switches, jumpers, and connectors are shown in Figure 14-8 on Page 14-13 and 
described in Table 14-10 on Page 14-25. 
LEDs on the TBSU and RBSU/RBSS show a continuous status of BRI operation. 
Refer to Table 14-9 on Page 14-23 for a list of each LED’s status.
Overview
The TBSU, RBSU and RBSS PCBs provide the Basic Rate Interface (BRI) circuits 
for DK40i and DK424, Release 4.1. The TBSU can only be installed in the DK40i 
Base KSU. The RBSU is the main plug-in PCB that plugs into the DK424 cabinet 
slots and the DK40i Expansion KSU slots. 
The RBSS is an optional PCB that plugs onto the RBSU. Each PCB provides two 
ISDN BRI circuits. Each BRI circuit provides 2 B-channels + 1D channel for voice/
data/video applications.
An REBU PCB is a piggy-back PCB that plugs onto the RBSU and provides basic 
functions for RBSU/RBSS circuits so it must always be installed on the RBSU. The 
REBU is not required on the TBSU.
The TBSU and RBSU circuits are four-wire S/T type circuits and connect to the 
Public Switched Telephone Network (PSTN) BRI lines using an Network Terminator 
unit (NT1); or, on the station side, they can connect to ISDN Terminal Equipment 
(TE) or Terminal Adapters (TA) as shown in Figure 14-12.
TE devices include any ISDN device (telephone, fax, computer) that connects directly 
to S/T ISDN BRI circuits. TA devices match the protocol of non-ISDN devices 
(telephone, fax, computer) to the protocol of S/T ISDN BRI circuits.
The TBSU and RBSU circuits can be configured two ways: 
©As BRI – TE circuits which connect to Telephone Network BRI lines using a 
NT1. 
						

							ISDN Interfaces
RBSU/RBSS and TBSU Interface Units
Strata DK I&M 5/9914-19
ISDN Interfaces
©As BRI – NT circuits which connect to ISDN TEs or TAs. These devices must be S-type 
station devices.
Important!The DK424 and DK40i BRI circuits allocate line numbers and station ports 
differently. In DK424, each BRI circuit consumes two line numbers and two station 
port when configured as line-side or station side. In DK40i, each BRI line circuit 
consumes two line numbers and no station ports; each BRI station circuit consumes 
two station ports and no line numbers.
The RBSU connection options (BRI line or ISDN TE-1/TA devices) are selected in DK40i and 
DK424 customer database programming and option switches located on the TBSU and RBSU. 
The TBSU and RBSU circuits that connect to the ISDN network side requires a dealer-supplied 
NTI interface box to convert the two-wire, U-interface BRI line from the telephone network to the 
four-wire, T-interface of the RBSU circuit. The NT1 must be UL listed (U.S.) or CSA certified 
(Canada). The network BRI line connection is a point-to-point connection, which means that the 
network BRI line can only be connected to one RBSU or TBSU circuit via the NT1 (T-reference 
point).
RBSS circuits connect directly to S-type TE-1 or TA ISDN devices only. They do not support BRI-
TE telephone network BRI line connections.
The TBSU, RBSU, and/or RBSS circuits that connect to the DK station side, (BRI-NT, S-
reference point) allows direct connection of multiple ISDN (TE-1 or TA) devices. The S point of 
the TBSU and RBSU/RBSS supports the Toshiba DK passive bus, also known as point-to-
multipoint connection. The terminal-side (S-point) of the TBSU or RBSU/RBSS BRI circuit can 
have parallel connections of up to two TE-1s or TAs maximum.
When multiple TE-1 and TA devices are installed on a single TBSU or RBSU/RBSS BRI circuit, 
the devices must share, or contend for, that circuit’s two B-channels. That is to say, a maximum of 
two simultaneous voice and/or data calls are allowed between both devices connected to the same 
BRI circuit. The contention rule for the two BRI B-channels is first come, first serve.
Figure 14-12 TBSU and RBSU/RBSS Interfaces between the S/T Reference Points
Capacity and Cabinet Slot Information
The TBSU can only be installed in the DK40i Base KSU. The RBSU/RBSS can be installed in any 
DK40i Expansion Unit slot and any DK424 slot except the programming telephone PDKU or 
PEKU slot. On DK424, each RBSU and/or RBSS contains two circuits and each circuit reduces 
the system capacity by two station ports and two CO lines (one port/line per B-channel). 
Therefore, if the RBSU PCB is installed, the station port and CO line count will increment by four 
ports and four lines at the RBSU cabinet slot.
If the RBSU/RBSS is installed in a DK424 slot, the station port and CO line count will increment 
by eight station ports and eight lines at the RBSU/RBSS cabinet slot. RBSU and RBSS PCBs can 
RX
TXDK TBSU  or 
RBSU/RBSSNT1 RX
TXPSTN
RX/TX
U T S
BRI
(2-wire) BRI-TE
(4-wire) BRI-NT
(4-wire)3336
S, T, and U are ISDN reference points.
TE = S-type Terminal Equipment
TA = S-type Terminal Adaptor TE-1
or
TA
12
...
TE-1
or
TA 
						

							ISDN Interfaces
RBSU/RBSS and TBSU Interface Units
14-20Strata DK I&M 5/99
be installed in any combination so long as the number of RBSU PCBs is the same or greater than 
the number of RBSS PCBs. See Ta b l e  1 4 - 7 for the maximum RBSU/RBSS circuits allowed.
On DK40i, TBSU and each RBSU and/or RBSS contains two circuits. Each circuit reduces the 
system capacity by two station ports or two CO lines. If the BRI circuit is configured as NT, the 
circuit assumes two station ports. If the BRI circuit is configured as TE, the circuit assumes two 
CO lines.
Table 14-7 RBSU/RBSS, BRI-TE, and BRI-NT Maximums by Type of Processor
PS-1 Backup Power Option
The RBSU provides an optional backup power supply, R40S, that will supply backup power to TE 
devices in the event of an AC power loss. This power backup option only applies to RBSU or 
RBSS circuits that are configured in the NT mode.  See Figure 14-16 to install the R40S.
NoteThe R40S is not available for the TBSU.
Also the DK system must have battery backup to allow the R40S power backup function to 
operate. The R40S power supply is an ISDN, PS-1 type power unit which means it supplies power 
to TE devices on the RBSU/RBSS transmit and receive wire pairs as shown in Figure 14-13. This 
power arrangement is also known as phantom power.
Each of the four circuits on RBSU/RBSS can be connected to share the R40S using option 
switches on the PCBs (see Table 14-8). Before using the R40S as a backup power source, make 
sure the TE devices do not require more power than the R40S can supply and the TE is compatible 
with the ISDN PS-1 power arrangement. Figure 14-6 shows the power limits of the R40S.
Figure 14-13 Power Limits of the Backup Power Supply
ProcessorTBSU1
1. TBSU and RBSU circuits can be NT or TE, but RBSS circuits can only be NT. TBSU can only be installed in the DK40i Base KSU.
Maximum allowed:
RBSU/RBSS/
PCBs combinedBRI-TE
CircuitsBRI-TE
ChannelsBRI-NT
CircuitsBRI-NT
Channels
DK40i 1 8
2
2. Maximums may not be achievable because of power factor limitations.
612102202
RCTUA4 N/A 4 4 8 8 16
RCTUBA3/BB4 N/A 12 8 16 16 32
RCTUC3/D4 N/A 24 8 16 40 80
RCTUE3/F4 N/A 36 8 16 64 128
3031
RX -
TX + Pin 3
Pin 6
Pin 4
Pin 5Pin 3
Pin 6
Pin 4
Pin 5 RX -
TX + TE Device
Power sinkR40S PS-1
Power
Source RJ-45 Pin Nos. on
RBSU or RBSS
NT circuit
RJ-45 Pin Nos.
on TE  device
R40S Power Limits:
Voltage: 33.3VDC to 38.85VDC maximum
Current: 100mA maximum (25mA maximum per each RBSU/RBSS circuit)TE
RBSU 
						

							ISDN Interfaces
RBSU/RBSS and TBSU Interface Units
Strata DK I&M 5/9914-21
ISDN Interfaces
TBSU and RBSU/RBSS Installation
Step 1: Run Related Programs
ä
Run all ISDN programs related to TBSU and RBSU/RBSS BRI circuits prior to installation of 
the PCBs. This enables the circuits to operate immediately upon insertion. ISDN BRI 
programs are explained in the Strata DK424 Programming Manual under the ISDN tab.
Important!For the DK40i, make sure to run Program *60 to identify all station (NT) and CO 
(TE) BRI circuits for each RBSU/RBSS and TBSU installed. Program *60 causes 
station port and CO line shifting on PCBs installed in slots that follow the BRI 
PCBs.
Step 2: Set Option Switches/Jumpers
ä
Set all option switches and jumpers on the TBSU, RBSU, and RBSS PCBs before plugging 
the RBSS onto the RBSU or inserting the RBSU into the system. RBSU/RBSS switch/jumper 
information and locations are shown in Figures 14-14, 14-15 and Table 14-8. TBSU switch/
jumper information is shown in Figure 14-18 and Table 14-10.
RBSU1A-CM V.1
RBSU1
2789
RBSU1A
BSY
TS
LOS
FS
BSY
TS
LOS
FSP2 P4P7
SW7
SW6SW9
SW8
J2
SW3
SW2
J1P5P6
P3
SW5
SW4
SW1J3P8 P9
TB3
PFT
contacts
TB1 TB2
Figure 14-14 RBSU PCB
SW2
SW3
SW4SW5
SW6
RBSS1A-CM V.1
SW1
F
J4 J2
J3 J5
2788
RBSSBSY
TS
LOS
FS
BSY
TS
LOS
FS
J7 J6
Figure 14-15 RBSS PCB 
						

							ISDN Interfaces
RBSU/RBSS and TBSU Interface Units
14-22Strata DK I&M 5/99
Table 14-8 RBSU/RBSS Option Switches, Jumpers, and Connectors
Step 3:  Install the REBS
NoteThe REBS provides a basic part of the RBSU/RBSS circuit functionality; therefore, it 
must always be installed on the RBSU (see Figure 14-16).
1.Align the two connectors carefully while observing the “UP” arrows on the REBS.
2. Plug the REBS onto the RBSU. 
Step 4: Install the RBSS
NoteIf one or two additional BRI-NT circuits are required, install the RBSS (see Figure 14-16).
1. Align the four connectors carefully while observing the “UP” arrows on the REBS.
2. Plug the RBSS onto the RBSU.
Step 5: Install the R40S
NoteIf ISDN PS-1 backup power for TE devices is required, install the R40S (optional PCB) 
(see Figure 14-16).
1. Align the two connectors carefully while observing the “UP” arrows on the R40S.
2. Plug the R40S onto the RBSU.
PCBCircuitOption 
SwitchTy p eCircuit TypeDescriptionTENT
RBSUAll SW 1 Push-button N/A N/A Resets firmware on all circuits of RBSU/RBSS. 
Drops calls off the RBSU/RBSS.
1 SW 2  Jumper X X Causes the circuit to operate as TE or NT
1.
1. Also requires Program *60 to set TE or NT.
1 SW 3 Slide ON OFF Switches a 100-ohm resistor in/out of the circuit.
1 SW 4, 5 Jumper N/A ON Switches PS-1 in/out of the circuit.
2 SW 6 Jumper X X Causes the circuit to operate as TE or NT
1.
2 SW 7 Slide ON OFF Switches a 100-ohm resistor in/out of the circuit.
2 SW 8, 9 Jumper N/A ON Switches PS-1 in/out of the circuit.
RBSS3 (NT only) SW 1 Slide ON OFF Switches a 100-ohm resistor in/out of the circuit.
3 (NT only) SW 3, 4 Jumper N/A ON Switches PS-1 in/out of the circuit.
4 (NT only) SW 2 Slide ON OFF Switches a 100-ohm resistor in/out of the circuit.
4 (NT only) SW 5, 6 Jumper N/A ON Switches PS-1 in/out of the circuit. 
						

							ISDN Interfaces
RBSU/RBSS and TBSU Interface Units
Strata DK I&M 5/9914-23
ISDN Interfaces
Figure 14-16 Location of RBSU Plug-on PCBs
Step 6: Install RBSU/RBSS PCBs into Cabinet
After setting the switches and jumpers and installing the plug-on PCBs as described in the 
preceding paragraphs, the RBSU/RBSS PCBs can be installed in the appropriate cabinet slots. 
Refer to RBSU/RBSS Capacity and Cabinet Slot Information on Figure 14-18. After the RBSU/
RBSS is installed in the DK424 cabinet or DK40i Expansion Unit, the status LEDs and connecting 
jacks are positioned as shown in Figure 14-19.
Table 14-9 RBSU/RBSS LED Indications
LEDIndication
BSYCircuit Busy
ON – Any B-channel is in use.
OFF – B-channels are idle.
TSTiming Source
Blinking ON/OFF – The RBSU is extracting the clock from the BRI line and is the 
Primary synchronization circuit for ISDN and T1.
ON – The RBSU is the secondary (backup) synchronization circuit for the ISDN 
and T1.
OFF – The RBSU is not used for ISDN or T1 synchronization.
LOSLoss of Signal
ON – Clock timing cannot be detected from the line.
OFF – Normal condition.
FSFrame Alignment Alarm
ON – Frame alignment cannot be established.
OFF – Frame alignment is established.
UP
UP
UP
UP
UP
UP
R40S1A-CM V.1
RBSU
Optional RBSS1A
REBS
R40S
2761
(always install)
Optional PS-1 Power Supply Two-circuit Subassembly 
						

							ISDN Interfaces
RBSU/RBSS and TBSU Interface Units
14-24Strata DK I&M 5/99
Step 7: Install the TBSU
Carefully align the TBSU connector pins with P11 and P12 on the DK40i motherboard and install 
the TBSU into the DK40i Base Unit. Use the two supplied screws to secure the TBSU to the 
motherboard. Figure 14-17 shows the TBSU mounting on the DK40i and Figure 14-18 shows the 
TBSU switch layout. Table 14-10 shows the TBSU option switches.
Figure 14-17 Installation of TBSU into DK40i
+
-
TCOU1A V1
TC1U2A
Optional with TCOU
(provides Caller ID)
Install a TCOU, TBSU 
or  TDDU here FG Screw
TDDU1A V1
3796
TBSU1AFS
LOS
TS
BSY FS
LOS
TS
BSY