Toshiba Perception E Ex Digital Pbx Installation And Maintenance Manual

AlTACHMENT A 
Tl/DS-1 INTERFACE 
The DS-1 interface operates at the rate of 1.544 
Mbps. This rate is obtained by either one of the 
following two methods: 
METHOD 1: 
l Rate of each channel (time slot) = 64 kbps 
l 64 kbps * 24 channels = 1.536 Mbps 
l Rate required for synchronization = 8 kbps 
l DS-1 rate = 1.536 Mbps + 8 kbps = 1.544 Mbps 
METHOD 2: 
l 8 bits per channel * 24 channels = 192 bits 
l 1 bit for frame synchronization 
l Total bits in one frame = 193 bits 
l DS-1 rate = 193 bits * 8000...

PERCEPTIONea,, 
Tl/DS-1 
SEPTEMBER 1991 
frames within the Super-frame. 
l The identification is done by verifying the 
Terminal Framing (FT) bit sequence 
“101010” (odd frames) and the Signaling 
Framing (FS) bit sequence “001110” (even 
frames). (See Figure 2.) 
2) Twenty-four frames per Super-frame. This 
grouping is known as the Extended Super- 
frame (ESF). 
l In this arrangement the framing bit is time 
multiplexed to support three functions, 
namely, Synchronization, Cyclic Redun- 
dancy Check...

PERCEPTIONeb,, 
Tl/DS-1 
SEPTEMBER1991 
tion imposes that in every frame of 8(n+l) bits, 
where n = 1 - 23, there must be at least an “n” 
number of “ONE.” There can also be no more than 
15 consecutive “ZEROS” present. To comply with 
these requirements, the Tl/DS-1 interface pro- 
vides the following two techniques: 
1) Zero Code Suppression (ZCS): This tech- 
nique forces the second least significant bit of 
any time slot with eight consecutive “ZEROS” 
to “ONE.” 
2) Bipolar Eight Zero Substitution...

PERCEPTIONeb,, 
Tl/DS-1 
SEPTEMBER 1991 
Loss of Signal (LOS) 
A Loss of Signal (LOS) condition is specified when 
the DS-1 signal is absent for more than 150 milli- 
seconds. Upon detection of LOS, the DS-1 inter- 
face generates a consecutive sequence of unfra- 
med all “ONE”signal, in orderto keep the regenera- 
tive repeaters alive. This condition causes the 
FALM LED to light. 
Jitter 
Jitters are short-term variations of significant in- 
stants (of a digital signal) from their idle positions in...

PERCEPTIONeh, 
SYSTEM RECORD 
FEBRUARY 1992 
Pdwceptionk 6; ex 
APPENDIX #I 
SYSTEM RECORD 
Version D.05  

PERCEPTIONek, 
SYSTEMRECORD 
FEBRUARY 1992 
SYSTEM DATA BLOCK (DSYS Program)  

PERCEPTIONeh, 
SYSTEM RECORD 
FEBRUARY 1992 
SYSTEM DATA BLOCK 2 (DSD2 Program) 
*Enter the name and access code in this column.  

PERCEPTIONeh,, 
SYSTEM RECORD 
FEBRUARY 1992 
CLASS OF SERVICE DATA BLOCK (DCOS Program) 
NOTE: Use multiple lines as required. 
AlTENDANT DATA BLOCK (DATT Program) 
ITEM 
Attendant Number PROMPT 
REQ 
AN0 
ENTRY 
Al-l-0 ATT1 
0 
1 
NOTE: Use a second sheet if Tenant Service is activated. 
-3-  

PERCEPTIONeh, 
SYSTEM RECORD 
FEBRUARY 1992 
ELECTRONIC/DIGITAL TELEPHONE BLOCK (DEKT Program) PCB Location (L 
1 
PROMPT ENTRY ENTRY ENTRY ENTRY ENTRY ENTRY ENTRY ENTRY 
’ _- 
d 
, I”U , 
I I I 
I I 
I I 
MT A I\T t N 
Button Acsinnmnnts- ““Syy . . I l”. ..“. 
DN Onlv! KEY 0 1 I I I I I I I Primary , 
t 1 
KEY 1 
KEY 2 
_--__ ^ 
KEY 4 
KEY 5 
KEY 6 
KEY 7 
KRV 8 
I -_-- - 1 KEY 9 1 
KEY 10 
KEY 11 
KEY 12 
NOTE: Use multiple sheets as required, 
Sheet / of 9 
-4-  

STANDARD TELEPHONE DATA BLC 
ITEM 1 PROMPT 
Port Number 
Directory Number 
Station Set Mix 
Class of Service 
Tenant Number 
Call Pickup Group 
Hunt Number REQ 
POR 
DN 
SMX 
cos 
TEN 
PUG 
HNT 
Dialing Type 
Speed Dial List 
Warning Tone Allowed? 
Call Forward to Trunk 
Toll Restriction Class DLG 
SDL 
WTA 
CFT 
TOL 
Off-hook Call  Messaae Waitina Lamo 
I I 
Announce  Emeraencv Rinadown Station I 
I 
I 
MWL 
i RDS 
OCA 
PERCEPTION,~, 
SYSTEM RECORD 
FEBRUARY 1992 
CK (DSlT Program) PCB Location (1...