Mitel SX 200 DIGITAL Pabx Superset 3 Telephone Description Manual

							SECTION MITL9109-094-125-NA
r
TXFigure 9-l Digital Interface Card
Page 20 
						

							Circuit Card Descriptions
10. UNIVERSAL CARDBrief Description10.01 The Universal card interfaces up to four modules to the back-
plane in any of the digital peripheral bays. The card and three of
the available modules are illustrated in Figure IO-I. Parts 15 through
18 describe the available modules.
Facilities10.02 Facilities provided by the Universal Card include:
0module mounting positions (four)
0module activity LEDs (four)
lsoftware-controlled failure alarm LED.
Physical Description
10.03 Each module has two vertical 32-pin female DIN connectors
which mate to male connectors on the Universal card. Me-
chanical connection to the Universal card is assisted by a standoff.
10.04 Up to four modules may be mounted on a Universal Card,
subject to electrical power limitations. See the Electrical De-
scription paragraph.
10.05Module size is 145 mm x 83 mm (5.7 in. x 3.25 in.).
Electrical Description10.06 The combination of modules on a Universal card is limited by
the power available from the card. Each module has a power
rating number. The total of these numbers must not exceed 10. The
Universal card can be mounted only in a high power (upper) card slot
of a digital bay.
10.07 The Module 
Dower ratings are as follows:
IModule TypeIPower RatingI-Empty module position
DTMF 
REC/RelayMusic on Hold/Paging
Console Interface Module
E&M Trunk
0.
2
1
5
3
Page 21 
						

							SECTION MITL9109-094-125-NA10.08 Each of the four module positions are assigned Universal card
tip and ring connections as shown below.
Module Position
Tl/Rl1 %/R2 T3/R31
Tl/RlT2/R2T3/R3
T4/R4T5/R5T6/R6
T7/R7T8/R8T9/R9
TlO/RlOTll/RllT12/R12Module Tip/Ring
Page 22 
						

							Circuit Card Descriptions
MUSIC ON
HOLD/PAGER
MODULERECEIVERIRELAVCONSOLE
MODULEMODULEE&M TRUNK
UNIVERSAL CARDLED’s-SWITCH
^_I
IMODULE 1w MODULE 2
oc- MODULE 3
__I
MODULE 4
-- ALARM
I
JRG
KAOOZ 1 EOROFigure 10-l Universal Card and Modules
Page 23 
						

							SECTION MITL9109-094-125NAPage 24 
						

							Circuit Card Descriptions
11. CONSOLE MODULE
Brief Description
11.01 The Console Module plugs into the Universal Card and provides
the interface between the console and the main and bay pro-
cessors.
Electrical Description
11.02 There are four channels of data to the console, multiplexed into
a 256 kb/s PCM line. One channel is for voice data and one is
for communication of operations information between the console,
processor and the bay processor via the console module processor.
The remaining two channels are reserved for future use.
11.03 The Console Interface Module feeds -48 Vdc to the console.
Current is limited to about 120 
mA.11.04 The Console Interface Module has a power rating of 5.
Page 25 
						

							SECTION MITL9109-094-I 25-NA
Page 26 
						

							Circuit Card Descriptions
12. DTMF RECEIVER/RELAY MODULE
Brief Description
12.01 The DTMF Receiver/Relay Module facilitates the reception and
decoding of DTMF dialing.
Main Components
12.02Major components of the DTMF Receiver/Relay Module are:aMite1 filter/codec (four)
0Mite1 8870 DTMF receiver (four)
lParallel bus interface
0Guard time circuit (four).
lGeneral Purpose relays (two).
Facilities
12.03Facilities provided by the DTMF Receiver/Relay Module include:
lEarly line split
lGuard time circuit
lPresents digits on parallel bus with Data Valid signal
lTwo general purpose relays.
Circuit Description
12.04 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
bsec 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 output stream is disabled. (Early
Line Split). The DTMF Receiver/Relay Module has a power rating of 2.
12.05 Two relays are on the module; each is software controlled to
provide a contact closure across one tip-ring pair.
Page 27 
						

							SECTION MITL9109-094-125-NATABLE 12-1
DTMF CODES
DTMF DIGITData Output
DS3 DS2 
Dl DO
11110
21101
3100
4
1011
51010
61001
71000
8
0111
90110
00101
*0100
#0011
Relays
12.06 There are two general purpose relays. When each relay closes,
it connects a tip and ring pair as follows:
The relay contacts are rated as follows:
maximum switching voltage: 90 V
maximum carrying current: 0.5 A
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 equiv-
alent isolation device situated within the equipment.
Page 28 
						

							Circuit Card Descriptions
13. E&M TRUNK MODULE
Brief Description
13.01 The E&M Trunk Module plugs into the Universal Card. It pro-
vides interface to Type 1 or Type 5 E&M trunks.
13.02 The module has a power rating of 3. Because of this, a maxi-
mum of three of these modules can be used per Universal Card.
Facilities
13.03 Facilities provided by the E&M Trunk Module include:lType 1 or Type 5 signaling
lselectable gain/loss plan for normal or satellite working trunks
lselectable 600 ohm or AT&T Complex Balance Network (350
ohms + 1000 ohms in parallel with 0.21 
pF)
0selectable 2- or 4-wire transmission
0on board filter/codec for analog/digital and digital/analog con-
versions 
(plaw).Operation
13.04 The E&M Trunk Module is set for the type of trunk in use by a
set of eight DIL switches. The settings are as follows:
FunctionSwitches
12345678
PABX to Line Gain
~  3 
dB-13 
dBoxxxxxxx
1 xxxxxxx
Line to PABX Gain
-4 
dB-11 
dBxoxxxxxx
xlxxxxxx
Balance
600 ohm
xx10xxxxComplex
xx01xxxxTransmission
2-wirexxxxoxxx
4-wirexxxxoxxx
Signaling
Type 1xxxxxlxx
Type 5xxxxxoxx
O= open, I= closed, x= not applicable
Default setting for North America is 00101100.
Page 29