Mitel Sx-2000 Llightware 32, Release 1.0 Technicians Handbook

							Installation
21
Installation
Fiber 
Interface 
ModuleInterfaces control node 
with DSU and peripheral 
nodes.1 Maximum Permitted Loss in 
Fiber:
6 dB, using 62.5/125 µm optical 
cable with a numerical aperture 
of 0.275 inches.
Maximum Length:
Approximately 1 km (0 to 5 km 
based on the sum of the cable 
loss and connector and/or splice 
losses. Total loss cannot exceed 
6 dB.).
LS/GS trunk 
cardGround start CO trunks
Loop start CO trunks8 not applicable
ONS and 
ONS 
CLASS/CLIP 
Line CardDTMF (2500) telephones
Rotary (500) telephones
Night bells16 External loop resistance: 
600 ohms
External wire resistance: 
400 ohms
External loop length:
22 AWG (23 IWG) - 3800 m 
(12350 ft.)
26 AWG (27 IWG) - 1500 m 
(4875 ft.)
OPS Line 
CardDTMF (2500) telephones
Rotary (500) telephones8 External loop resistance: 
1800 ohms
External wire resistance: 
1600 ohms
External loop length:
22 AWG (22 IWG) - 15240 m 
(50000 ft.)
26 AWG (27 IWG) - 5853 m 
(19200 ft.)
Table 2:    Peripheral Interface Cards  (Cont’d)
Card Devices Supported Circuits Maximum Loop 
Resistance/LoopLengths
 (Sheet 2 of 2) 
						

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22
DSU Cards
Table 3:    DSU Cards
Card Devices Supported # of Channels/Links
BRI Card ISDN Basic Rate Interface card 6 or 15 BRI Circuits
CEPT Formatter Card
(all variants)CEPT digital trunk 60 channels
(two 30-channel links and 
2 D-channels)
Conference Card Flexible assignment for up to 64 
conference channels; up to eight 
conferees per conference call; up to 21 
three-party conferences.64 conference channels
DS1 Formatter Card
(all variants)T1/D4 digital trunk 2 x 24-channel links
PRI E1 Card ISDN Primary Rate Interface card 2 x 30 B-channel and 2 
D-channel links
PRI T1 Card ISDN Primary Rate Interface card 2 x 23 B-channel and 1 
D-channel link
R2 Card Protocol Converter - converts incoming 
MF-R2 signals from the PSTN to 
DPNSS, and outgoing DPNSS to 
MF-R2 signals for the PSTN.two E1 links 
(2 x 30-channel links )
Tone Detector Card Tone level detection
Auto-correlation tone detection
Threshold crossing count tone 
detection
Cadence tone detection32 tone detection channels 
						

							Installation
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Installation
Control Cards
Table 4:    Control Cards
Card Important Details
Main Controller II E Provides 8 Mbytes of RAM if system is running software version 
M21.0 or earlier. If the system is running software version M21.1 or 
later, it provides 15 Mbytes of RAM, and therefore the control RAM 
II cards must be removed.
Main Controller III or
Main Controller III RProvides 16 Mbytes of RAM. 
Main Controller III  E Provides 16 Mbytes of RAM if system is running a software version 
between P02.3.2 and Q10.7.14 (must be programmed as MCIIIr). 
If the system is running software version Q10.5 or later, it provides 
32 Mbytes of RAM and built-in Ethernet connection.
Circuit Switch Matrix II Increases main controller’s circuit switch size from 24 x 24 circuit 
switch links to a 48 x 48 non-blocking link matrix. It is required in a 
redundant system.
Control Resource Card Required in SX-2000 LIGHT non-redundant and redundant 
systems.
Control Resource Card II This card is required in the SX-2000 MICRO LIGHT system but 
can be used as a replacement for the control resource card in 
SX-2000 LIGHT non-redundant and redundant systems.
Control Resource Card III This card is required for systems that use the OPS Manager ETI 
interface.
Peripheral Switch 
Controller CardThis card performs all peripheral switch functions for up to 12 
Peripheral Interface Cards.
Peripheral Resource Card Peripheral nodes that use a PSCII have PRC functionality built in. 
One or two peripheral resource cards are installed in each DSU 
node. 
						

							Technician’s Handbook
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Card Settings
Control Resource Card Switch Settings
These switches determine which maintenance terminal 
ports are active.
Figure 7:   Control Resource Card
Table 5:   Control Resource Card Switch Settings
Maintenance Data Output
 Switch settings
 S1 S2 S3 S4
Control (or SX-2000 MICRO LIGHT), 
peripheral, and DSU nodes (default)closed closed not used not used
Control (or SX-2000 MICRO LIGHT) node only open  open  not used not used
Peripheral and DSU nodes only open closed not used not used
Control (or SX-2000 MICRO LIGHT) node only closed  open  not used not used 
						

							Installation
25
Installation
E&M Trunk Card Switch Settings
Set switch SN-1 and SN-2 on the E&M trunk cards.
∗Positions are SN-1 and SN-2 where N is the particular trunk circuit number on the card (1 through 4).
Figure 8:   E&M Trunk Card
Table 6:    E&M Trunk Switch Settings
Types of Interface Circuits  Switch Positions
Signal/Carrier Set Types Co-located Trunk Types SN-1∗ SN-2∗ 
TYPE I  NONE  A  B
TYPE II  TYPE II  B  A
TYPE IV  TYPE IV B  A
TYPE V  TYPE I  B  B
TYPE V  TYPE III B  B
TYPE V  TYPE V B  B 
						

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OPS Line Card Message Waiting Switches
Set message waiting switches for each circuit (S1 through 
S8) as follows:
Figure 9:   OPS Line Card
Table 7:   OPS Line Card Switch Settings
Setting Description
A Circuits are connected to Off-Premises (OPS) lines. Loop extended over the 
Message-Waiting Answer (MWA)/Message-Waiting Busy (MWB) pair to the 
called extension.
B Circuits are connected to On-Premises (ONS) lines. Consists of a -140 Vdc 
source delivered at a variable rate to the Ring lead of the called extension. 
Rate is custom programmed during CDE to be continuously on through 80 
Hz. 
						

							Installation
27
Installation
DS1 Formatter Card Line Equalizer Switches
Set the line equalizer switches S1 and S2 as follows: 
Note:The DS1 interface meets the AT&T DSX-1 specification for distances up to 655 
feet (200 m) if 22 AWG (22 IWG) shielded cable is used. The interface can 
operate at up to 750 feet (229 m), but compliance with the AT&T DSX-1 specifi-
cation is not guaranteed at this distance. For greater distances, a repeater must 
be used. 
CEPT Interface Assembly Jumpers
Jumper positions J06 to J09 allow you to ground the shields 
of the coaxial cable connectors. Jumper positions J10 to J13 
provide locations to affix the jumpers when they are not in 
grounding positions. Jumpers J06, J07, J09, J011, and J12 
are located beneath the side of the CEPT interface 
assembly faceplate.
Note:Default settings are shown in bold.
Table 8:   Line Equalizer Settings
Line Length  Switch Cells
(feet) (meters)1234567
0 - 150  0 - 45.8 close open open open open open open
150 - 450 45.8 - 137.4 open close open open close open close
450 - 750 137.4 - 229 open open close close open close open
Table 9:   CEPT Interface Assembly Connector Shield Grounding
Circuit 0
Circuit 1
RX grounded jumper across J06 RX grounded jumper across J08
RX not grounded no jumper across J06 RX not grounded no jumper across J08
TX grounded jumper across J07 TX grounded jumper across J09
TX not grounded no jumper across J07 TX not grounded no jumper across J09 
						

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E1/T1 (DS1) Formatter Card Switch Settings
Set E1/T1 mode using the E1/T1 switches on the card’s side
PRI Cards and DS1/CEPT I and II Cards 
To set the card for LT, remove the NT jumper blocks and 
place them on the LT jumpers.
Figure 10:   Dual E1 PRI Card
Table 10:   E1/T1 (DS1) Formatter Card Switch Settings
E1/T1 Switches
Mode Channel 
24Switch 1 
(Link 1)Switch 2 
(Link 2)
E1 mode (compatible for connection 
to MSDN DS1 trunks that have been 
externally converted from MSDN 
CEPT trunks)data not 
invertedopen open
T1 mode (normal DS1 formatter card 
operation)data 
invertedclosed closed
Note: If you set a link for E1 mode, the data on channel 24 is not inverted. The 
external carrier must map the channels to the CEPT link. 
						

							Installation
29
Installation
Peripheral Interface Cabling
Use the tables in this section to cable the peripheral node 
card connectors to the Main Distribution Frame (MDF). 
When cabling the SX-2000 MICRO LIGHT node connectors, 
use the cabling tables that correspond to the peripheral 
interface card slot in the MICRO LIGHT node.
Cable Connectors
Use AMP Champ or equivalent cable connectors
!50-pin RS (receptacle - screw lock)
!female
!screw lock
!90 tapered slide-on hood.
USCO Pin Designations
The USCO connector numbers are
!RJ21X for CO trunks
!RJ2EX for 2-wire E&M trunks
!RJ2FX for 4-wire E&M trunks
!RJ2GX for 4-wire E&M trunks
!RJ2HX for 4-wire E&M trunks. 
						

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Table 11:   USCO Connector Pin Designations
Pin Color 
CodeRJ2IX RJ2EX RJ2GX RJ2FX RJ2HX
26 W/BL T T T T T
1  BL/W R R R R R
27 W/O T  E T1 E T1
2 O/W R M R1 SG R1
28 W/G T T E M E
3 G/W R R M SB SG
29 W/BR T E T T M
4  BR/W R M R R SB
30 W/S T T T1 E T
5 S/W R R R1 SG R
31 R/BL T  E  E  M  T1
6  BL/R R  M M SB R1
32 R/O T T T T E
7  O/R R R R R SG
33 R/G T  E T1 E M
8 G/R R M R1 SG SB
34 R/BR T T E M T
9 BR/R R R M SB R
35 R/S T E T T T1
10 S/R R M R R R1
36 BK/BL T T T1 E E
11 BL/BK R  R  R1 SG SG
37 BK/O T  E  E  M  M
12 O/BK R  M M SB SB
38 BK/G T T T T T
13 G/BK R R R R R
39 BK/BR T  E T1 E T1
14 BR/BK R  M  R1 SG R1
 (Sheet 1 of 2)