Toshiba Perception E Ex Digital Pbx Installation And Maintenance Manual

							1) 
2) 
3) 
4) 
5) 
6) 
7) 
8) 
9) 
10) installation. Two expansion cabinets can be 
installed. 
Remove and retain the four screws securing 
the basic cabinet top cover and lift the cover 
off the cabinet (Figure 4-l 1). 
Remove and retain the two screws securing 
each of the expansion cabinet side panels. 
Pull the side panels off. 
Place the four casters on the basic cabinet in 
the lock position to ensure cabinet stability 
during the expansion cabinet installation. 
On both the basic and expansion cabinets, 
remove and retain two screws securing the 
cabinets’ doors. Remove and retain the six 
screws securing the rear panel on each cabi- 
net. 
Place the expansion cabinet on top of the 
basic cabinet, ensuring proper alignment of 
the four mounting holes. Secure in place with 
four metric bolts, flat washers and lockwash- 
ers. 
Reinstall the two side covers on the expansion 
cabinet and secure in place using four screws 
(two per side). 
Install the top cover on the expansion cabinet 
and secure with four screws. 
Connect the intercabinet ground wire in accor- 
dance with Figure 4-8. 
Route the expansion cabinet ribbon cable 
from J406 in the expansion cabinet through 
the opening provided in the cabinet bottom 
and connect to the basic cabinet backplane at 
J403. 
Remove three screws from the secondary 
power supply. From the front of the expansion 
cabinet, slide the power supply into the rack 
and secure in place with the three rear screws. 
NOTE: 
Prior to routing intercabinet cabling, check the 
15-amp fuse (F2) located at the top of the main 
power supply to verify that it is in working 
order. 
11) 
12) 
13) 
14) 
15) 
16) 
17) 
18) 
19) 
20) 
INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
JUNE1992 
Route the power supply cabling through the 
hole in the expansion cabinet and connect 
both power supplies to the upper connectors 
at the Pl, P2 and P3 receptacles. 
With the main power supply turned OFF, plug 
the AC power cord into the AC outlet. 
Momentarily press each secondary power 
supply circuit breaker to verify that it is not 
tripped. 
Place the main power supply power switch in 
the ON position. 
Verify that all secondary power supply power 
indicator LEDs are on. If any of the LEDs are 
not on, replace the NPSA-S (RINGER LED 
should be pulsating rapidly). 
Using a multimeter (set to the appropriate 
ranges), check the pins on connectors 5701 
and J702 on the secondary power supply for 
the voltages shown in Figure 4-9. (The con- 
nectors are on the rear of the power supply 
chassis.) Measure between the voltage pin 
and a ground pin. (All ground leads are tied to 
a single point, so any can be used.) Figure 4- 
9 also shows the acceptable range for each 
output voltage. If a measured voltage falls 
outside of the acceptable range, replace the 
secondary power supply. 
Turn the power supply OFF. 
Plug in connectors J701 and J702. 
Route cable J703 into the basic cabinet and 
plug it into connector J803. 
Reinstall the rear panels and doors on both 
cabinets and secure in place with screws. 
3. PRINTED CIRCUIT BOARD INSTALLATION 
3.00 NFDU 
3.01 Install an NFDU in the FDDO slot in the basic 
cabinet. If the system uses 0.02 or later version 
softwareand Remote Maintenance, asecond NFDU 
must be installed in the FDDI slot in the basic 
cabinet. There are different strap selections on the 
various NFDUs, depending on the slot in which the 
4-9  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
JUNE1992 
SHIPPING SETTING 
DEFAULT FDDO 
SLOT NUMBER: FDDO 
o FG 
INSTALLER SElTlNG 
FDDl 
SLOT NUMBER FFDI 
NEC (FD-235GF-121-U) 
SHIPPING SElTlNG 
IEFAULT FDDO 
SLOT NUMBER: FDDO 
NSTALLER SETTING 
=DDl 
SLOT NUMBER FFDl 
D2 D3 
m 
jHlPPlNG SETTING 
IEFAULT FDDO 
iLOT NUMBER: FDDC 
FG 
ISG 
D 
E 
D 
C 
B 
A 
1234 1 
USTALLER SElTlNG 
‘DDl 
#LOT NUMBER FFDl 
FG 
EIG 
D 
E 
D 
C 
B 
A 
123 4 
FDD 
TEAC (FD-235GF-3121-U) 
FIGURE 4-12-NFDU STRAPPING PCB is installed or the type of NFDU that you are 
working with. Check the identification number on 
the NFDU and refer to the corresponding diagrams 
in Figure 4-l 2 which show how the jumper block on 
the rear of the NFDU must be set. 
3.10 
LCCU 
3.11 Install the LCCU in the CCU slot of the basic 
cabinet. There are no straps on this PCB; however, 
there is a plug (P5). Verify that the connection plug 
is in place in accordance with Figure 4-13. 
FIGURE 4-13-LCCU STRAPPING 
3.20 NTWU 
3.21 The NTWU has one strap that must be veri- 
fied before installation (Figure 4-14). Install the 
NTWU in the TWU slot of the basic cabinet. Ensure 
that the strap is as follows: 
TBC5: pins 1 & 2 must be strapped 
3.30 NPRU 
3.31 The NPRU has one strap that requires verifi- 
cation before installation (Figure 4-15). If Auto- 
matic Wake-up is required, verify that the DROM is 
installed in the IC15 socket. Install the NPRU in the 
PO0 slot. (An NPRU must be installed in the PO0 
card slot.) If a second NPRU PCB is used, install it 
in the PO1 slot in the PERCEPTION, expansion 
cabinet. In PERCEPTlONe,, both NPRUs are in- 
stalled in the basic cabinet. Verify that TBl is 
strapped as follows: 
TBI : pins 1 and 2 must be strapped. 
4-10  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
JUNE1992 
-Tl 0 
NTWU3 
FIGURE 4-14-NTWU STRAPPING 
NOTE: 
DROM on/y required for digitized voice on 
automated wake-up calls. 
3.32 If NRCUs are to be installed, mount them on 
the NPRU. The first NRCU mounts on connector 
J3, the second on J4 (see Figure 4-16). 
3.40 NEKU, NDKU, and NOCU 
3.41 Install the NEKU in any of the line designated 
slots LOO N Lll or L15 m L26 in PERCEPTlONe. If 
an attendant console is used, an NEKU must be 
installed in slot LOO. If a second attendant console 
is installed, a second NEKU must be installed in slot 
L15. Attendant consoles must be installed on cir- 
cuit 1 in both slots. 
FIGURE 4-15-NPRU STRAPPING FIGURE 4-16-NRCU MOUNTING 
3.42 For PERCEPTlONe,, install the NEKU in any 
designated slot UOO N 
U31. To utilize attendant 
consoles, install NEKUs in the following slots: 
AlT#O-PCB position UOO Circuit #l 
ATT#l -PCB position UOl Circuit #l 
3.43 There are no straps on the NEKU PCB for 
either system. 
3.44 Install the NDKU in any of the line designated 
slots LOO 
m Lll orL15 w L26 in PERCEPTlONe. 
For PERCEPTlONe,, install the NDKU in any des- 
ignated slots UOO W U31. Some options require 
adjacent PCB slots be left vacant. 
3.45 The NDKU employs a 2B+D architecture for 
each circuit that must be configured for one of four 
different operating options using the dip switch Sl 
(Figure 4-l 7) as follows: 
IPTION 
S-l POSITION OPERATION 
1 DIP switches 1 - 4: ON DKT only 
DIP switches 2 4: ON  - 
2 DKT with DIL 
DIP switch 1: OFF or OCA 
3 DIP switchesl, 3, and 4: ON 
DIP switch 2: OFF 4 DSS only 
I 
1 I 
4 DIP switches 1 and 2:OFF 
DIP switches 3 and 4: ON 8 DSS only 
1) OPTION 1: Eight digital telephones only: this 
option uses one of the two B channels for each 
circuit to interface up to eight lOOO-series 
digital telephones. 
4-11  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
JUNE 1992 
n  NDKU2 SWITCH POSITIONS 
Black shading indicates 
switch position 
FIGURE 4-Ii’-NDKU SWITCH OPTIONS 
2) OPTION 2: Eight digital telephones with DIU 
or OCA: this option uses bdth 6 channels for 
each circuit to interface up to eight lOOO- 
series digital telephones; plus each telephone 
may have an integrated Data Interface Unit 
(PDIU-DI) or Off-hook Call Announce PCB 
(DVSU) installed. In addition, this option sup- 
ports the stand-alone Data Interface Unit (PDIU- 
DS). One B channel for each circuit interfaces 
a single PDIU-DS. The other B channel of this 
circuit cannot be used. A single PDIU-DS only 
may be installed per each circuit. 
1 3) OPTION 3: Four digital DSS consoles only: this 
option uses one of the B channels for each of 
the two circuits to interface up to four lOOO- 
series digital DSS consoles. 
1 4) OPTION 4: Eight digital DSS consoles only: this 
option uses both B channels for each of the two 
circuits to interface up to eight lOOO-series 
digital DSS consoles. 
NOTE: 
1. When using option 2 or 4, the next highest 
numberadjacentPCBs/otcannotbeused. 
For example, if an NDKU is installed in LO1 
or UOl, the PCB slot LO2 or UO2 respec- 
tively, must be left vacant. 2. When using option 4, program the first four 
DDSSs on circuits 7, 3, 5 and 7 on the 
NDKU PCB. Program the second four 
DDSSs on cirucits 1, 3, 5 and 7 on the 
adjacent slot next to the NDKU PCB. 
3. When using option 4, wire the first four 
DDSSs to circuits 1,2,3 and 4 on the NDKU 
PCB(thesearetheNDKUassignedDDSSs) 
and the second four DDSSs to circuits 5, 6, 
7 and 8 (these are the DDSSs assigned to 
the adjacent slot) on the NDKU PCB. 
3.46 The NOCU PCB is installed at a rate of one 
PCB for each group of eight electronic telephones. 
There are no strapping options on this PCB. The 
NOCU is installed in any of the line designated slots 
LOO m Lll and/or L15 m L26 in PERCEPTION,, and 
in any designated slots UOO m U31 in PERCEP- 
TION,,. If any of the eight circuits is not used for 
Off-hook Call Announce, the remaining circuits 
CANNOT be used for other electronic telephone 
assignments. 
3.50 NSTU 
3.51 Install the NSTU in any of the line designated 
slots LOO w Lll or L15 w L26 in the PERCEPTION, 
system. The designated slots in PERCEPTION,, 
4-12  
						

							INSTALLATIONINSTRUCTIONS 
SECTlON200-255-204 
FEBRUARY1992 
are UOO M U31. There are no straps on the PCB for 
either system. 
3.60 NDSU 
3.61 Install the NDSU PCB either in the COO or CO1 
slots or in any of slots LOO - Ll 1 or L15 - L26 in the 
PERCEPTION, system. Two NDSUs can be 
installed in the same cabinet. There are no straps 
on this PCB. There are no C slots resident within 
the PERCEPTION,, system so NDSU PCB instal- 
lation will be in any U slot . 
3.70 NEMU, NCOU, and NLSU 
3.71 Trunk PCBs (NEMU, NCOU, and NLSU) may 
be installed in any T slot. Additionally, up to 16 U 
slots may also be 
used for trunk PCBs. 
3.72 There are four circuits on the NEMU PCB, 
and each circuit has its own set of straps (Figure 4- 
18). On a circuit-by-circuit basis, strap the PCB as 
follows: 
1) For Type VII operation: 
CIRCUIT 
CIRCUIT 
STRAPS OPERATION 
TYPEI 1 TYPEII 
TB 101 
I 
1 TB 102 
TB 106 
TB 201 
2 TB 202 
TB 206 
TB 301 
3 TB 302 
TB 306 
TB 401 
4 TB 402 
TB 406 l-2 
2) For 2-wire/4-wire connection: 
2-3 
CIRCUIT 
STRAPS CONNECTION 
2-WIRE 1 4-WIRE 
TB 103 
I 
3) For 600-/900-ohm operation: 
CIRCUIT STRAPS OPERATION 
6000hm 1 900 ohm 
4 TB 104 
I 
I- I 1 TB105 1 
I I 
3.73 The NCOU PCBs have Ground-/Loop-start, 
600/900-ohm termination, and 2dB pad strap se- 
lections that must be made before they are installed 
(Figure 4-19). 
1) Each NCOU circuit is individually strapped for 
either Ground Start or Loop Start operation. 
The strapping location and options for each 
circuit are shown as follows: 
OPERATION 
STRAPS 
GND ST LP ST 
Extend $ind Normal Reverse 
1 TB 104 
2 TB 204 
B-CD-E C-DA-B 
3 TB 304 
4 TB 404 
NOTES: 
1. The GROUND START “EXTEND/NO EX- 
TEND” options refer to “loop extenders” 
on long trunk loops. If a battery boost is 
used on the trunk, select EXTEND, other- 
wise NO EXTEND should be selected. 
2. The LOOP START “NORMAL/REVERSE” 
options refer to the system’s ability to 
detect a pre-ring supervision signal in the 
form of a battery polarity reversal on the 
CO TIP and RING. 
l lf NORMAL is selected, the system will 
not 
be sensitive to CO trunk polarity. 
l If REVERSE is selected, the CO cir- 
cuit will be “made busy” when the CO 
reverses polarity prior to ringing on an 
incoming call. 
4-13  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
FEBRUARY1992 
0 
o@l(@ o@ 0,s ojs, oej fpiii$-~ oe, ; 
TB407 TB405 TB304 TE307 TB305 
TB404m TBZO4 TB207 TB205 
mmm TB104 TB107 TB105 
pJ?JpzlqzJ 
mmjzJtJ 
ABC TM03 ABC 
ABC TB203 ABC 
FIGURE 4-18-NEMU STRAPPING 
ABCDE ABCDE 
ygEl 
YE? ABCDE 
YEi? ABCDE 
rqqq 
TB104 
l-B403 TB303 
TB203 
El 
El TB103 
Am-B A 
n - B AmmB 
R A”B 
Am=13 A . . B 
Al=B 
Am=8 
TM02 
I: TB302 
cl TB202 E 
6001900 
600/900 
600/900 
ABC ABC 
GE ABC 
EY e 
NCOU2 
r,a,,w..- I -- ..-a.. --- ------- 
r~bunt 4-lY-NWU Sl~RAPPlNG 
4-14  
						

							INSTALLATION INSTRUCTIONS 
SECTlON200-255-204 
FEBRUARY1992 
2) Determine the proper impedance for each 
trunk and then strap its NCOU circuit for either 
600- or 900-ohm operation. Install the short- 
ing bar across the center pin and the outer pin 
labeled either 600 or 900 at each strapping 
location (Figure 4-19). Each circuits strap- 
ping location is shown as follows: 
CIRCUIT 
STRAPS - OPERATION 
600 ohm 900 ohm 
1 TB101 
2 TB201 
3 TB301 A-B 
B-C 
4 TB401 
3) In some installations, particularly those near 
the serving Central Office, noise may be intro- 
duced over the CO trunk that will appear as 
sidetone at the telephone. In such situations, 
a 2dB pad can be inserted into the line to 
reduce thesidetone. The following table shows 
the strapping position for each circuit to either 
insert or remove the 2dB pad. 
3.74 Three separate strappings must be made for 
each of the four circuits on the NLSU PCB (Figure 
4-20). 
1) Determine the proper impedance for the trunk 
line to be used, and then set the 600-ohm/900- 
ohm loop termination for each circuit as follows: 
CIRCUIT STRAPS OPERATION 
6000hm 1 900ohm 
1 
1 TBlOl 1 
I I 
2 
TB201 
3 
TB301 A-B 
B-C 
4 
TB401 
2) When the CO distance exceeds 2,000-ohm 
loop resistance, Battery-to-Ground Dial Puls- 
ing should be used. Foradistance of less than 
2,000-ohm loop resistance, use Loop Dial 
Pulsing. Strap each circuit as follows: 
CIRCUIT STRAPS OPERATION 
r BAT-GND DP( LOOP DP 
3) Each NLSU circuit must be adjusted for CO 
trunk loop resistance to ensure proper detec- 
tion of incoming digits. Each circuit adjust- 
ment is made by strapping as follows: 
CIRCUIT STRAPS - OPERATION LEAST MID MOST 
1 TB102 
2 
3 TB202 c-d bwc awb 
TB 302 _ 
4 
TB402 
NOTE: 
This strapping should be made only after the 
appropriate CO distance strapping (step 2) 
has been made. The CO trunk loop resistance 
values are arbitrary and are used as an initial 
strapping guide. If the incoming digits are not 
being detectedproperly, move the strap to the 
next most sensitive position and test again for 
proper operation. 
3.80 NDTU 
3.81 
A maximum of two NDTU PCBs (Figure 4-21) 
may be installed. The system must be equipped 
with an NTWU-3 to ensure proper operation of the 
NDTU. The NDTU is connected to the telco through 
a customer-supplied Channel Service Unit (CSU). 
A separate CSU is required for each NDTU. Each 
NDTU has 11 DIP switches and 8 strapping op- 
tions, which must be verified before installation. 
NOTE: 
The factory-default switch settings and strap- 
ping options are indicated by an asterisk (*). 
1) Select thedesired operating mode using mode 
selection switch 
Sl (4-element DIP switch) 
4-15  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
FEBRUARY1992 
ABCDEF 
ABCDEF 
T ABCDEF 
yg3 ABCDEF 
v 
T 
ABC 
ABC 
ABC 
FIGURE 4-ZO-NLSU STRAPPING 
I J2 
TB7 
L,,,,---,,-,,,,,,,,- 
-------------- 
PIGGY-BACK 
PCB 
C,m,.mC - 1- 
..--.. --- -----.- 
miunt 4-Zl-NU I U STRAPPING 
4-16  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
FEBRUARY1992 
as follows: 
ELEMENT POSITION 
MORE 
Sl ON * 
12 Multi (Robbed bit signaling) 
Sl OFF 
24 Multi (Common channel 
signaling) 
s2 
ON 
Zero Code Suppression (ZCS) 
I 
s2 
I OFF* 
Binary Eight Zero Suppression 
(B8ZS) 
s4 
1 Not used 1 
NOTE: 
Digital Multiplexed Interface BOS. 
2) Determine the proper transmit equalizer set- 
ting; either short (0 w 150 feet), medium (150 
w 450 feet), or long (450 * 655 feet); then 
select the appropriate setting using transmit 
equalizer setting switch S2 (8-element DIP 
switch) as follows: 
I 
s8 
I Not used 
I 
3) The NDTU is installed in the TOO slot. A 
second NDTU may be installed in the TO8 slot. 
Each NDTU provides a maximum of 24 chan- 
nels, divided into groups consisting of four 
channels each. The first group would fill trunk 
slot TOO, the second TO1 with the remaining 
four groups occupying trunk slots TO2 m TO5 
for a total of six groups. For example, if eight 
channels are active on the NDTU then slots 
TOO and TO1 are active i.e., no PCB may be 
installed in slot TO1 . However, PCBs may be 
installed in slots TO2 w T05. Enable the appro- 
priate channels using slot enable/disable 
switch S3 (6-element DIP switch) as follows: 
NOTE: 
Set switch element to ON to enable associ- 
ated digital trunk channels; OFF to disable 
channels. 
4) 
Signaling modes are individually selectable 
for each active channel. Determine the appro- 
priate signaling mode for each channel; either 
CO (Loop Start) mode, CO (Ground Start) 
mode, DID (2-wire loop signaling), or TIE 
trunk (Type II 4-wire E&M) mode; then assign 
the selected signaling modes using signaling 
type selection switches S4 w Sll (6-element 
DIP switches) see Loop/Ground Start Mode. 
5) Configure the NDTU for the appropriate ROM 
type, either 64 Kbit or 256 Kbit, using 
strappings shown below. the 
6) When configured for normal operation, the 
NDTU is in the slave mode, and the central 
office serves as the master clock. For CO 
testing purposes, the NDTU may be config- 
ured as the master. Configure the NDTU for 
the appropriate operating mode using the 
strapping options shown below. 
STRAPS OPERATING MODE LOOPBACK OPTION 
SLAVE 1 MASTER MASTER ( SLAVE 
TB3andTB4 l-2’ 
I 2-3 
ITB~ and TB6l 
1 1-2 1 2-3’ 1 
4-17  
						

							INSTALLATION INSTRUCTIONS 
SECTION 200-255-204 
FEBRUARY1992 
Loop/Ground Start Mode 
7) In some installations, particularly those near 
the serving Central Office, noise may be intro- 
duced over the CO trunk that will appear as 
sidetone at the telephone. In such situations, 
a 2dB pad can be inserted into the line, for 
either incoming voice or outgoing voice, to 
reduce the sidetone. Strapping options for the 
2dB pad are shown below. 
8) Install the NDTU in the TOO slot in the main 
cabinet. If applicable, install a second NDTU 
in the TO8 slot. Connect the NDTU to the CSU 
using the Toshiba-supplied cable. 
9) The NDTU contains an on-board 12.288 MHz 
clock used to synchronize the NDTU with the 
NTWU-3. Connect a coaxial clock cable from 
NDTU connector 53 to NTWU connector J2. 
3.90 NMDU and NDCU 
3.91 The NMDU (Figure 4-22) must be strapped 
for operation with either a one-pair or two-pair 
modem connection. The two strapping positions for 
each modem are shown below. 
CIRCUIT OPEfi 
STRAPS 
One-pair 
4 
TB 501 
I I 1 TB 502 1 
,TION 
Two-pair 
A-B 
3.92 To change the strap positions on TB 8011802 
it is necessary to lift the small piggy-back PCB off 
the NMDU. Replace the PCB once the straps have 
been changed. 
3.93 If any of the first four NMDU circuits are not 
used for Modem Pooling, the corresponding DDIU 
4-18