Inter-Tel Imx/Gmx 256 Installation And Field Maintenance Manual

							INTER-TELPRACTICESIMX/GMX 256 INS-TION & MAIlQTNAlKl3
INSTALLATION
Issue 1, November 1994
B.CONNECTING Tl 
!3PANS TO TEE MDF
5.8 The installation procedure used to connect Tl
spans at the MDF is dependent on the type of termina-
tion used by the telephone company and how close it is
to the MDF. The 
Tl spans may be terminated on RJ48C
modular jacks or on RJ-type terminal blocks.
5.9Follow one of the three 
Tl termination methods
(A, B, or C) outlined on the following pages.
NOTE: The 
Tl span is typically connected to the stan-
dard 
RJ4gC jack provided on the Tl Card. However, incertain situations (e.g., when using an external 
CSU
equipped with a 
DB15 connector), it may bc more con-venient to use the card’s optional 
DB15 connector
instead. Refer to page 3-20 for more information.
Method A- Tl Spans Terminated On RJ4SC
Jacks Near The MDF
5.10
Install Tl spans terminated on RJ4gC jacks near
the MDF as outlined in below.Plug one end of a four-pair, non-reversing
(straight through), mod-to-mod line cord into
each telephone company RJ48C jack. The other
end of each line cord will 
Zater be plugged into
the 
Tl jack on the corresponding Tl Card.
NOTE: Make sure the connectors on the ends of
each line cord are properly attached. If any of thewires are cracked or broken, 
Tl transmission
problems can occur.
Method B - Tl Spans Terminated On RJSSC
Jacks Away 
Fom The MDF
5.11Install Tl spans terminated on RJ48C jacks away
from the MDF as outlined in the following steps. Refer
to Figure 3-9 on the next page for a diagram of the com-
plete layout.
(1)
(2)
(3)
(4
(5)Mount one eight-conductor modular jack assem-
bly next to each telephone company 
RJ48C jack.
For each modular jack assembly mounted in step
1, also mount a corresponding 
eightconductor
modular jack assembly on the MDF backboard.To connect the modular jack assemblies
mounted in steps 1 and 2:a. Run 
Tl cable between the uuresponding
modular jack assemblies.NOTE: If the telephone company termina-
tion is more than 2000 feet from the MDF,
special 
Tl cable uzu.rf be used (see page 2-20for cable specifications). For shorter dis-
tances, two lengths of standard two-pair voi-
ce-frequency cable (one cable for transmit
and one cable for receive) may be used in-
stead.
b.Wue each end of the cable onto their respec-
tivemodular jack assemblies. Refer to Figure
3-10 on the next page for a diagram of the
wiring.
At the telephone company termination, plug oneend of a four-pair, non-reversing (straight
through), mod-to-mod line cord into each RJ4gC
jack and plug the other end into the correspond-
ing modular jack assembly next to it.
At the MDF backboard, plug one end of a 
four-
pair, non-reversing (straight through), 
mod-to-
mod line cord into each modular jack assembly.The other end of each line cord will 
later be
plugged into the Tl jack on the correspondingT1
Card.
NOTE: Make sure the connectors on the ends of
each line cord are 
proFrly attached. Ifauy of thewires are cracked or broken, 
Tl transmission
problems can occur.
Page 
3-17 
						

							INSTALLATIONIssue 1, November 1994INTER-TELPRACTICESIMX/GMX 256 INS’ICAUATON & MAINTENANCE.
FIGURE 3-9, 
Tl SPAN TERMINATIONS FROM RJ4SC JACKS
FOUR-PAIR, NON-
REVERSING,
MOD-TO-MOD
LINE CORD
Tl CABLE
FOUR-PAIR, NON-
REVERSING,MOD-TO-MOD
LINE CORDJACK
EIGHT-CONDUCTOR
MODULAR JACK ASSEMBLIES
FIGURE 3-10.MODULAR JACK ASSEMBLY WIRING FOR Tl SPANS
MODULAR JACK ASSEMBLYFOUR-PAIR, NON-
1
REVERSING,
MOD-TO-MOD
LINE CORD
RING
w-n
TIP1
(IN)
RING 1
UN)‘2
34 --
56 --
76
NOTE: OUT = transmit to network, IN = receive from network
Page 3-18Tl CARD
RJ48C JACK 
						

							INTER-TEL+PBACTICESIMNGMX 256 INSTALLATION & MAINTENANCEINSTALLATIONIssue 1, November 1994
Method C
- Tl Spans Terminated On An
RJ-‘Qpe Block
5.12Install the Tl spans as outlined in the following
steps. Refer to Figure 3-11 below for a diagram of the
complete layout.
(1)On the MDF backboard, mount one eight-con-
ductor modular jack assembly for each 
Tl span
termination on the telephone company RJ-type
block(s).
(2)Connect 
Tl cable between the telephone compa-
ny terminations and the corresponding modular
jack assemblies as follows:
NOTE: If the telephone company termination is
more than 2000 feet from the MDF, special 
Tl
cable must be used (see page 2-20 for cable spec-
ifications). For shorter distances, two lengths ofstandard two-pair voice-frequency cable (one
cable for transmit and one cable for receive) may
be used instead.
a.Terminate one end of a six-pair cable on each
modular jack assembly. Refer to Figure 3-10
on the previous page.
b.Terminate the other end of the six-pair cable
on the 
right side of the Tl R&type terminal
block.Plug one end of a four-pair, non-reversing
(straight through), mod-to-mod line cord into
each modular jack assembly (mounted in step 1).The other end of each line cord will 
later be
plugged into the Tl jack on the correspondingT1
Card.
NOTE: Make sure the connectors on the ends of
each line cord are properly attached. If any of thewires are cracked or broken, 
Tl transmission
problems can occur.
FIGURE 3-WTl SPAN TERMINATIONS FROM R&TYPE BLOCKSTO
TELCO
Tl CABLE
FOUR-PAIR, NON-
REVERSING,
MOD-TO-MOD
LINE CORD
EIGHT-CONDUCTOR
MODULAR JACK ASSEMBLY
Page 3-19 
						

							INS’lXLLAl”IONIssue 1, November 1994
lNTER-TELPRACTIcEsIMXIGMX 256 INS’rALLATION & MAINTENANCE
Using The Optional 
DBl5 Connector In Place Of
The 
RJ4SC Jack
5.13The three Tl installation methods described on
the preceding pages show the 
Tl span being connected
to the 
RJ48C jack on the Tl Card. However, in certain
situations (e.g., when using an external CSU equipped
with a 
DB15 connector), the installer may wish to use
the card’s optional 
DB15 connector instead.
5.14The pin functions of the 
Tl Card DB15 connec-
tor (U-pin subminiature “D” female connector) are asfollows: 
-
5.15To connect the DB15 connector on the Tl Card toa DB15 connector coming 
from the Tl span, a flat,
28AWG, twisted-pair ribbon cable with a maximum
capacitance of 16pF/ft. may be used for distances of up
to 50 feet, as shown in the 
figure below. For distanceslonger than 50 feet, use the special high-speed data
cable described in paragraph 3.91 on page 2-20.
FIGURE 3-12.USING THE Tl CARD’S OPTIONAL DB15 CONNECTOR
MALE DB15 CONNECTORMALE DB15 CONNECTOR
TO 
Ti SPANTOT1 CARD
TP(Out) 1
Ring (Out) 9
2
10lip 1 (In) 3
Ring 1 (In) 11
4
125
13
6147-158
NOTE: OUT = transmit to network, IN = receive from network
1 -fiP(Out)
9 Ring (Out)
2
103 
Tip 1 (in)11 Ring 1 (in)
4
125136147158
Page 3-20 
						

							INTER-TELPRACTICESIMX/GM.X 256 INSTAlLLATION & MAINTENANCEINSTAUATIONIssue 1, November 1994
C.
COlWECTlNG S’IATION CABLES TO THE
MDF
5.16Each type of station instrument is comtected to aI
specific station card. Digital keysets are connected to
DKSCs. Analog keysets, analog DSS/BLF Units, and
Attendant Computer Consoles are comtected to KSCs or
KSC-Ds. Single-line sets and playback devices are con-
nected to 
SLCs and/or IDCs.
NOTE: Resides single-line sets, playback devices, and
off-premises extensions, 
IDCa can also be used to install
DID trunks. Any combination using the eight circuits on
the card is Possible. Refer to pages 3-11 to 3-15 for DID
trunk installation instructions.
5.17After the station cables are run, connect them and
the 
25-pair cables to the station blocks on the MDF as
follows:
(1)
(2)
I
Ensure that both ends of each station cable are la-
beled with the circuit number of the associated
station instrument.
Terminate each station cable on the 
right side of
the corresponding station block. Refer to Figures3-13 through 3-19 on the following pages for
station cable terminations.
NOTE: For simplicity, Figures 
3-13,3-17, and
3-18 show digital 
keysets, single-line sets, and
playback devices being installed using one-paircable and four-conductor modular jacks. Of
course, if three-pair cable and six-conductor
modular jacks are used instead (as is 
recom-
(3)
(4
Q
(6)mended), extra terminal blocks and the use of
cross-connect wiring techniques are required.Using enough 
25pair cable to run from each
block to each station card in the equipment cabi-net, make the termination cables. Attach a
50-pin female amphenol-type connector to oneend of each cable. Label each 
connector and
cable end with the appropriate slot number (for
example, SLOT-2). These 
co~ectors will be at-
tached to the station cards after the circuit cards
are installed.
Using standard electrical tape, tape two ferrite
split beads around each 
25-pair cable just below
the amphenol-type connector (as shown in Fig-
ure 3-12).
NOTE: Ferrite beads must be installed to meet
Part 15 of FCC regulations. Refer to REPLACE-
MENT 
PAWTS for the part number.
Terminate the other end of each 25-pair cable on
the 
Zefi side of the corresponding station block.
NOTE: 
lf necessary, any of the eight circuits on
an IDC can be enabled for 
AC ringing to be usedwith off-premises extensions or on-premises
AC-ringing equipment. To do this, each circuitcan be strapped directly at the IDC terminal
block (as shown in Figure 3-18 on page 3-27) or
on the card itself (as described on page 3-51).
DO NOT attach bridging clips until the loop re-
sistance tests have been performed (as described
on page 3-29).
Page 3-21 
						

							INSTALLATIONIssue 1, November 1994INTER-TELPRACTICESIMXIGMX 256INS~~ON &MAINTENANCE
, . .FIGURE 3-13.DIG+ KSC BLOCK CABLE TERMINATIONS FOR KEYSETS\
/
LDIGITAL
KEYSET
CARDDKSC
-1 l-1.1.1
RING ---
np -121~,,~1.!21--‘-RING ---me
np1.8.11--Jy.8.1RING -
AMPHENOL-
TYPE
CONNECTOR
1 ‘-&---I
66Ml-50-TYPE
BLOCK
(PART OF 
MDF)
MODULARJACK
ASSEMBLY
A
TO DIGITALKEYSET
np
TO DIGITALKEYSET
NOTE: For simplicity, this figure shows keysets being installed using one-pair cable and four-conductor
modular jacks. Of course, if two-pair cable or three-pair cable is used instead, extra terminal blocks and the
use of cross-connect wiring techniques are required. Note that tip and ring are 
connected to the secondpuir of
terminals (black and yellow) on the modular jack.
Page 3-22 
						

							lNTER-TELPRACTIcEsIMX’GMX 256INSTALIATION & lMMNTENANCE
INSTAz;LATIONIssue 1, November 1994
FIGURE 3-14.ANALOG KSC BLOCK CABLE TERMINATIONS
KSC
MODULAR
KEYSET
CARD
MODULAR
SLMIGMJJACKolw mlIASSEMBLYG/WSECII 1
TO KEYSET,
ATTENDANT
CONSOLE,
OR 
DSSBLF
AMPHENOL-
TYPE
CONNECTOR
66Yl-S&TYPE
BLOCK
(PART OF 
MDF)
Page 3-23 
						

							IN-TION
Issue 1, November 1994INTER-TELPRACTICESIMX/GMX 256INsTALcATON & MAINTENANCE
FIGURE 3-15.INSTALLING S-LINE IMX AIM KEYSETS TWO TO A CIRCUIT!
CIRCUIT 1 .lA
MDFA
CIRCUIT 1.1A
C
MDF
BLOCK
KSC-DCIRCUIT 
l.lACIRCUIT 
l.lB
NOTE: This illustration shows three common methods for installing two 8-line IMX AlM keysets on a single
KSC-D circuit. For a detailed wiring diagram of method A, refer to the following-page.
\i;!
Page 3-24 
						

							INTER-TELPRACTICESIMXGMX 256INSTAL.LA’TION & MAINTENANCEINSTALLATIONIssue 1, November 1994
FIGURE 3-16.KSC-D BLOCK CABLE TERMINATIONS FOR &LINE IMX AIM
KEYSETS INSTALLED TWO TO A CIRCUITKSGD
III
--k-l-r
66Ml-50-TYPE
BLOCK
(PART OF 
MDF)
MODULAR
CIRCUIT 1 
.lACIRCUIT 1 .lA
MODULAR
JACK
-fi IBWONDASgEMBLY
om PRI
WSEC1CIRCUIT 1 .l B
II I
IWF; SEC
I
TO S-LINE
AIM KEYSET
NOTE: This illustration details one common method for wiring two Mine IMX Alh4 keysets to a single
KSC-D circuit. For a simple illustration of some alternative installation methods, refer to the previous page.
Page 3-25 
						

							INSTALLATION
Issue 1, November 1994INTER-TELPRACTICESIMX/GMX 256 INSI’AUATION & MAINTENANCE
FIGURE 3-17.
SLC BLOCK CABLE TERMINATIONS
SINGLE-
LINE
CARD
MODULARJACK
ASSEMBLY
0Y
w
TO SINGLE-
LINE SET OR
PLAYBACK
RBKDEVICE
wmnp
MODULAR
JACK
3
TO SINGLE-
LINE SET ORPLAYBACK
DEVICE
AMPHENOL-TYPE
CONNECTOR
66Ml-W-TYPE
BLOCK
(PART OF 
MDF)
NOTE: For simplicity, this figure shows single-line sets and playback devices being installed using one-pair
cable and four-conductor modular jacks. Of course, if three-pair cable and six-conductor modular jacks are
used instead (as is recommended), extra terminal blocks and the use of cross-connect wiring techniques are
required.
Page 3-26