Mitel SX 200 ML PABX Instructions Guide

Circuit Card Descriptions 
purchased options for the PABX. If the System ID module is missing or the Mite1 options 
password is incorrect, the PABX does not operate. 
SYSTEM ID 
MODULE 
Jl CONNECTOR 
PI J2 
CONNECTOR TO SFT 
TO BCC AND PORTS 
CC0567 
Figure 5-l Main Control Card II 
Bay Control Card 
Brief Description 
5.3 The Bay Control Card (BCC), part number 9109-017-000, is required in the lower 
rightmost slot. 
CAUTION: This card must not be inserted or removed with the power on. 
Functions 
The...

Engineering InformaKon 
Electrical Description 
Connection to the Main Control Card II is via one 96 DIN connector on the Bay Control 
Card. 
There are two pairs of switches on the card; see Figure 5-2. All four switches must be 
set to closed for normal operation. 
r Ll~~m - 
&Ii.L.-- n- -- - 
CPU I L-III 
Figure 5-2 Bay Control Card 
5-4 
Issue 1 Revision 0 March 1997  

Circuit Card Descriptions 
@ MllW 
MODULE 
’ e 
MODULE $ 
* 0: 
1  2 MODULE 
MODULE g INDICATORS 
3 e= 
MODULE 
4 0 
id v ALARM - 
ALARM 
LED 
Jl 
UNIVERSAL 
@ MllEL- 
LINE I 0 
LINE2 08 
LINE3 0: 
LINE4 @g 
F 
LINE 5 0 LINE 
LINE6 0 INDICATORS 
LINE7 & 
LINE8 @ 
LINE9 @ 
LINE IO@ 
LINE II@ 
LINE 120 
r 
q v ALARM- 
AL4RM 
WI LED 
l 
@ Mm 
TRUNK@ 
1 2 
TRUNK@z 
2 u 
TRUNK 0 
3 
m 
TRUNK@$ 
4 
TRUNK 0 
5 
TRUNK @ 
6 
ONS LSIGS 
CARD 
LINE CARD 
OPS LINE 
INDICATORS 
- ALARM - 
LED 
@ MI-EL- 
TRUNK 0 g 
1...

Engineering Information 
Universal Card 
. . 
Brief Description 
5.4 The Universal Card, part number 9109-005-000, interfaces up to four modules to the 
backplane. The card modules are illustrated in Figure 5-4. 
Facilities 
Facilities provided by the Universal Card include: 
. module mounting positions (four) 
l module activity LEDs (four) 
l software-controlled failure alarm LED. 
Physical Description 
A module measures 145 mm x 83 mm (5.7 in. x 3.25 in.). Each module has two vertical 
32-pin female...

Circuit Card Descriptions 
- SWITCH 
MUSIC ON 
HOLD/PAGER 
MODULE RECEIVER/RELAY E&M TRUNK 
MODULE 
UNIVERSAL CARD LED’s 
1 
2 
I MODULE 1 
e MODULE 2 
J 
I MODULE 3 
v MODULE 4 
-ALARM 
Figure 5-4 Universal Card and Modules 
DTMF Receiver/Flelay Module 
Brief Description 
The DTMF Receiver/Relay Module facilitates the reception and decoding of DTMF 
dialing. 
Main Components 
Major components of the DTMF Receiver/Relay Module are: 
l Mite1 filterkodec (four) 
l Mite1 8870 DTMF receiver (four) 
l...

EnQineerinQ InfcmnUtiOn 
5-8 
l Guard time circuit 
9 Presentation of digits on parallel bus with Data Valid signal. 
Circuit Description 
There are four receivers on the DTMF module. Each receiver takes its input from the 
incoming serial PCM audio stream and repeats this data to the outgoing serial PCM 
stream approximately 125 msec later. A filter/codec converts the data to analog audio 
which is monitored by a DTMF Receiver chip. When DTMF tones are detected, the 
loopback of the data to the PCM...

Circuit Card Descriptions 
Function Switches 
12345678 
PABX to Line Gain 3 dB 0 x x x x x x x 
-13 
dB lxxxxxxx 
Line to PABX Gain- 4 dB xoxxxxxx 
-1-I dB 
X lxxxxxx 
Balance 600 ohm x x 10xXxX 
Complex x x Olxxxx 
Transmission 2-wire x x x x I x x x 
4-wire x x x x 0 x x x 
Signaling 
Vw 1 x x x x x 
1 x x 
Vw 5 x x x x x 
0 x x 
0= open, I= closed, x= not applicable 
Default setting for North America is 001 Oil 00 
The E&M Trunk Module applies signals to the M lead and monitors the E lead. In the...

Engineering Information 
The control relay contacts are rated as follows: 
maximum switching voltage 90 Vrms 
maximum carrying current 0.4 Arms 
Note: This relay contact may be connected only to a secondary circuit that has no direct connection 
to a primary circuit, and receives its power from a transformer, converter, or equivalent isolation 
device situated within the equipment. 
DID Trunk Card 
Brief Description 
5.5 The DID Trunk Card (pat? number 9109-031-000) contains six l-way direct inward 
dial...

Circuit Card Descriptions 
line. Ring is grounded and Tip is at -48 Volts. There are two types of controlled address 
signaling: Delay Dial and Wink Start. 
A Delay Dial signal must start no later than 150 ms after trunk seizure. It is held until 
the PABX is ready to receive dialing. Minimum hold time is 140 ms. 
A Wink Start signal must start at least 100 ms after trunk seizure. It is sent when the 
PABX is ready to receive dialing and can be held a maximum of 290 ms. 
Where the CO does not provide...

Engineering Information 
Facilities 
5-12 
Facilities provided by the L!YGS Trunk Card include: 
l Loop Start or Ground Start selectable by jumper 
l M and MM signaling leads available 
l Trunk activity indicated by LED (one per trunk) 
l Transient suppression on Tip, Ring, and signaling leads 
l Alarm LED. 
Electrical Description 
The Loop Start/Ground Start Trunk Card mounts in any slot and interfaces six trunk 
circuits to the system. Each trunk circuit is programmed as loop start or ground start 
by...