Inter-Tel Glx Installation And Field Maintenance Manual

							INTER-TEL PRACTICES 
INSTALLATION 
GLX INSTALLATION % MAINTENANCE 
Issue 1, 
November 1985 
For C.O. Lines -- 
if terminated on RJ14 jacks away from the MDF: 
For a better understanding of the supplies needed, refer to Fig- 
ure 3-4 on page 3-11. 
Two 4-conductor modular jack assemblies for every two C.O. 
lines installed. 
Two 2-pair mod-to-mod line cords for every two C.O. lines. 
2-pair cable to extend from the RJ14 jack location to the 
MDF. 
For C.O. Lines 
-- if terminated on RJ14 jacks near the MDF: 
For every two C.O. lines installed, one 2-pair mod-to-mod 
line cord to connect from the RJ14 jack to the correspond- 
ing KSU C.O. jack. 
.: ‘.’ 
: :: 
For C-0. Lines 
-- if terminated on an RJ2lX block: 
For a better understanding of the supplies needed, refer to Fig- 
ure 3-6 on page 3-13. 
One 66Ml-50-type connecting block and a supply of bridging 
clips. 
25-pair cable to extend from the RJ21X block to the MDF. 
A 50-pin male amphenol-type connector and a connecting ma- 
chine. 
One 4-conductor modular jack assembly for every two C.O. 
lines installed. 
2-pair cable or cross-connect cable. 
One 2-pair mod-to-mod line cord for every two C.O. lines. 
3. 
MOUNT THE MAIN DISTRIBUTION FRAME (MDF) 
3.01 Using the proper hardware, 
mount the 3 X 4-foot (0.9 X 1.2- 
meter), 3/4-inch plywood backboard on the wall. 
Plan the MDF 
layout: 
instructions for mounting connecting blocks, modular jack 
assemblies, and the KSU are included with the respective proce- 
dures throughout this section of the manual. 
Also included are 
detailed diagrams of the MDF layout. 
on page 3-2. Refer to the system layout 
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‘. .‘. 
Page 3-5  
						

							INTER-TEL PRACTICES INSTALLATION 
GLX INSTALLATION c MAINTENANCE Issue 1, 
November 1985 
4. STATION 
A. 
RUN THE 
4.01 Using CABLING 
STATION CABLES 
the floor plan developed in pre-installation plan- 
ning, run 2-pair twisted cable from the MDF to each keyset loca- 
tion. 
Label both ends of every cable with the keyset intercom 
number (10-21). Follow these guidelines when running cable: 
l Avoid cable runs parallel to fluorescent light fixtures or 
AC lines not in conduit. If these obstacles are unavoid- 
able, run the cable across them at right angles. 
l DO NOT run station cables inside electrical conduit already 
occupied by AC power cable. To do so is a violation of the 
National Electrical Code. 
l DO NOT run station cables near equipment with electric 
motors or past strong magnetic fields (copy machines, heavy 
motors, arc welding equipment, etc.). 
l DO NOT place station cables where they can be rolled over 
by office furniture or stepped on. 
l DC NOT allow the station cable length to exceed 40 ohms or 
800 feet (243 meters), using 24AWG wire. The ohm value is 
the loop measurement; the foot (meter) length is the maxi- 
mum one-way measurement from the KSU. Refer to page 3-9 
for loop resistance information. 
B. 
TERMINATE STATION CABLES AT THE MDF 
4.02 Terminate each station cable at the MDF as described below. 
Refer to Figure 3-2 on the next two pages. 
(1) Mount the 66Ml-50-type connecting block on the MDF back- 
board. 
(2) Ensure that each station cable is correctly labeled with 
the keyset intercom number. 
(3) Terminate each station cable on the right side of the 
station block. 
(4) Using enough 25-pair cable to run from the station block 
to the left side of the KSU, make the termination cable: 
(a) Attach a 50-pin female amphenol-type connector to one 
end of the cable. (b) Terminate the other end of the 
25-pair cable on the left side of the station block. 
The 
connector will be attached to the KSU later. 
: : j 
:.. .‘.’ 
(5) DO NOT attach bridging clips on the station block until 
you perform the loop resistance .test (see page 3-9). 
Page 3-6  
						

							INTER-TEL PRACTICES 
INSTALLATION 
GLX INSTALLATION h MAINTENANCE 
Issue 1, November 1985 
FIGURE 3-2, TERMINATE STATION CABLES AT THE MDF 
See 
detailed chart of the individual wire 
terminations on the next page. 
AMPHENOL 
CONNECTOR 
i 
V/BR 
BR/V 211 
v/s 
I 
s/v 
I 
I 
- 
L 
66MI -5O- TYPE 
CONNECTING BLOCK 
Diagram of the station block above. 
4 - CONDUCTOR MODULAR 
JACK ASSEMBLY 
& 
FEMALE AMPHENOL- TYPE 
CONNECTOR 
66MI-60-TYPE 
CONN;CTtT;; 
::YSET 
Page 3-7  
						

							INTER-TEL PRACTICES 
INSTALLATION 
GLX INSTALLATION h MAINTENANCE 
Issue 1, 
November 1985 
FIGURE 3-3. 
TERMINATE STATION CABLES AT THE MDF (CONT.) 
TERMINAL CABLE 
NUMBER PAIR FUNCTION 
26 W-BL TIP 
1 BL-W RING 
27 w-o GND 
2 
o-w +28VDC 
28 W-G TIP 
3 G-W RING 
29 W-BR GND 
4 BR-W +28VlX 
30 w-s TIP 
5 s-w RING 
31 R-BL 
GND 
6 BL-R +28VDC 
32 R-O TIP 
7 O-R RING 
33 R-G 
GND 
8 G-R 
+28VDC 
34 R-BR 
TIP 
9 BR-R RING 
35 R-S GND 
10 S-R +28VDC 
36 BK-BL TIP 
11 BL-BK RING 
37 BK-0 
GND 
12 0-BK +28VDC 
38 BK-G 
TIP 
13 G-BK 
RING 
39 BK-BR 
GND 
14 
BR-BK +28VDC 
40 BK-S 
TIP 
15 S-BK RING 
41 Y-BL 
GND 
16 BL-Y 
+28VDC 
42 Y-O 
TIP 
17 
O-Y RING 
43 
Y-G GND 
18 
G-Y +28VDC 
44 
Y-BR 
TIP 
19 BR-Y 
RING 
45 
Y-S 
GND 
20 
S-Y 
+28VDC 
46 V-BL 
TIP 
21 
BL-V 
RING 
47 v-o 
GND 
22 
o-v +28VDC 
48 V-G 
TIP 
23 G-V 
RING 
49 V-BR 
GND 
24 BR-V 
+28VDC 
50 v-s 
NOT USED 
25 
s-v 
NOT USED KEYSET INTERCOM 
NUMBER NUMBER 
-- 
1 10 
11 
12 
4 
13 
5 14 
6 
15 
7 
16 
8 17 
9 18 
10 
19 
11 
20 
12 
21 
, 
Page 3-8  
						

							INTER-TEL PRACTICES 
INSTALLATION 
GLX INSTALLATION & MAINTENANCE 
Issue 1, 
November 1985 
C. TERMINATE S+ATION CABLES AT KEYSET LOCATIONS 
4.03 Terminate the keyset end of each station cable on a 4-con- 
ductor modular jack assembly as shown in Figure 3-3 below. DO 
NOT mount them on the wall at this time. 
FIGURE 3-3. KEYSET MODULAR JACK ASSEMBLY WIRING 
BL/W 
D. 
PERFORM THE STATION LOOP RESISTANCE TEST 
NOTE: 
If performing the loop resistance test after the system is 
installed, unplug the keyset from the jack assembly. 
Then either 
unplug the 25-pair station cable from the KSU or remove the 
bridging clips for the desired keyset from the station block. 
(1) Place a short across the RED and GREEN wires on the key- 
sets modular jack assembly. 
(2) On the station block, measure the resistance across the 
WHITE/BLUE and BLUE/WHITE wires. 
For proper keyset oper- 
ation, the resistance must not exceed 40 ohms, which is 
equivalent to a 24AWG cable run of 800 feet (243 meters). 
NOTE: Excessive and/or high resistance connections in- 
crease the resistance of a cable, 
which reduces the al- 
lowable cable run length. 
(3) Remove the short after the test is completed. 
DO NOT 
mount the jack assembly on the wall at this time. 
It 
will be mounted when the keyset is installed. 
(4) Repeat this procedure for each station cable. 
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(5) Install bridging clips on the station block to complete 
the cable connections. 
Page 3-9  
						

							INTER-TEL PRACTICES INSTALLATION 
GLX INSTALLATION h MAINTENANCE 
Issue 1, 
November 1985 
5. 
CONNECT TIiE C-0. LINES 
5.01 The installation procedure used to terminate C.O. lines at 
the MDF is dependent on the type of jack used by the telephone 
company and how close their jacks are to the MDF. 
The C.O. lines 
may be terminated on RJ14 (C or W) jacks or on an RJ21X block. 
Follow one of the three methods (A, B, or C) below. 
IMPORTANT NOTES: 
The first C.O. jack on the KSU connects lines 1 and 2, the 
second connects lines 3 and 4, 
and the third connects lines 5 
and 6. Lines must be connected in that sequence. 
if three lines are installed, For example, 
lines 1 and 2 would terminate on 
the first C.O. jack, 
and line 3 would terminate on the second 
C.O. jack. 
For additional lightning protection, install gas discharge 
tubes to ground on each C.O. line. 
To ensure that this is done 
external to the system, install the tubes between the telephone 
company jacks and the modular jack assemblies that will be 
mounted next to the KSU. 
This protection should give energy 
absorption and filter low-level surge potentials on the C.O. 
lines. If method B (direct KSU connection) is used, gas 
discharge tubes cannot be installed; use method A instead. 
A. C-0. LINES TERMINATED ON RJ14 JACKS AWAY FROM THE MDF 
(1) 
(2) 
(3) 
(4) 
(5) Refer to Figure 3-4 on the next page for the 
Mount one 4-conductor modular jack assembly next 
RJ14 jack. 
For each jack assembly mounted in step 1, also 
corresponding jack assembly on the MDF backboard 
the KSU location. 
To interface between the jack assemblies mounted 
1 and 2: layout. 
to each 
mount a 
next to 
in steps 
a. Run one a-pair cable from each jack assembly by the 
RJ14 jacks to each jack assembly on the MDF backboard. 
b. Wire each end of the a-pair cables onto the respective 
jack assemblies. 
Refer to Figure 3-5 on the next page 
for wiring instructions. 
On each RJ14 jack, plug in a 2-pair mod-to-mod line cord; 
plug the other end into the corresponding jack assembly 
beside it. 
On each jack assembly on the MDF backboard, plug in one 
end of a 2-pair mod-to-mod line cord. The other end will 
be plugged into the KSU later. 
Page 3-10  
						

							INTER-TEL PRACTICES INSTALLATION 
GLX INSTALLATION & MAINTENANCE Issue 1, November 1985 
FIGURE 3-4. C.O. LINE TERMINATIONS FROM RJ14 JACKS 
RJl4 (C OR W) 
JACKS 7 r 4 - CONDUCTOR MOD. 
JACK ASSEMBLIES y 
TO C-0. 
( hJ&o+ 
PER JACK) 
L-PAIR 
MOD-TO-MOD 
LINE CORDS 2-PAIR 
CABLES -KSU 
: _:: 
: ,‘X 
L P-PAIR MOD-TO-MOD 
LINE CORDS 
BL/W 
FIGURE 3-5. MODULAR JACK ASSEMBLY WIRING FOR C.O. LINES 
W/BL w/o 
o/w 
RING I RING2 
Page 3-11  
						

							INTER-TEL PRACTICES 
GLX INSTALLATION & MAINTENANCE INSTALLATION 
Issue 1, 
November 1985 
B. 
C-0. LINES TERMINATED ON RJ14 JACKS NEAR THE MDF 
5.02 Before using this procedure, read the IMPORTANT NOTES on 
page 3-10. Plug one end of a 2-pair line cord into each RJ14 
jack. The other end of each line cord will be plugged into the 
corresponding C.O. jack on the KSU after it is installed. 
c. C.O. LINES TERMINATED ON AN RJ21X BLOCK I ,J ,> -. 
j .:; 
5.03 Before using this procedure, read the IMPORTANT NOTES on 
page 3-10. Refer to Figure 3-6 on the next page for the layout. 
(1) 
(2) 
(3) 
(4) 
(5) Mount a 66Ml-50-type connecting block on the MDF back- 
board. 
For every two C.O. lines, mount a 
jack assembly on the MDF backboard. 
tioned between the C.O. line block 
and the KSU location. 4-conductor modular 
They should be posi- 
(mounted in step 1) 
For each jack assembly (mounted in step 21, connect a 
2-pair cable (or cross-connect cable) from it to the C.O. 
line block as follows: 
a. Terminate one end of a a-pair cable on each jack as- 
sembly. Refer to Figure 3-5 on the previous page. 
b. Terminate the other end of the 2-pair cable on the 
right side of the C.O. line block, with C.O. line 1 
tip and ring first, then C.O. line 2 tip and ring, 
etc. 
On each jack assembly on the MDF backboard, plug in one 
end of a a-pair mod-to-mod line cord. 
The other end will 
be plugged into the KSU later. 
, To interface between the C.O. line block and the RJ21X 
block: 
a. Run a 25-pair cable from the MDF to the RJ21X block 
location. 
b. Terminate the MDF end of the 25-pair cable on the left 
side of the C.O. line block. Install bridging clips 
to complete the connections there. 
c. On the RJ21X end of the 25-pair cable, attach a 50-pin 
male amphenol-type connector. 
: : 
d. Plug the male connector into the female connector on 
the RJ21X block. 
I 
:: 
Page 3-12  
						

							INTER-TEL PRACTICES 
INSTALLATION 
GLX INSTALLATION b MAINTENANCE 
Issue 1, 
November 1985 
: 
FIGURE 3-61 C-0. LINE TERMINATIONS FROM AN RJ2lX BLOCK 
TO 
RJ2lX 
C.O. BLOCK 
._.. . AMPHENOL-TYI 
CONNECTOR 
CABLES 
6. 
UNPACK AND INSPECT TEE KSU 
-KS” 
J 
_ 2 -PAIR MOD-TO-MOD 
LINE CORDS 
(1) Unpack the KSU and lay it on a flat surface with the 
cover facing up. Open it by removing the four retaining 
screws and lifting off the cover. 
**********t********************************************** 
* 
CAUTION * 
* The PCBs contain static-sensitive components. 
Lift * 
* them only by the edges and carefully handle the corn- * 
* ponents while inspecting them in the next step. * 
************k******************************************** 
(2) Inspect the fuses for the correct voltage and current 
rating. The AC fuse (2A, 25OV, slow-blow) is accessible 
from the outer right side of the KSU. 
The three station 
_ fuses (lA, 25OV, fast-acting) are mounted on the lower 
right corner of the Main Control PCB. 
Ensure that the 
ROM integrated circuits are properly seated in their 
sockets. Refer to Figure 3-7 on the next page for loca- 
tions. 
Page 3-13  
						

							INTER-TEL PRACTICES 
INSTALLATION 
GLX INSTALLATION h MAINTENANCE 
Issue 1, 
November 1985 
(3) If the KSU or any of its components are damaged, contact 
Inter-Tels Order Processing Department immediately. 
(4) You MUST activate the lithium battery by removing the red 
piece of paper located between it and the battery clip. 
Otherwise, 
the data base memory 
during a power outage. will not be protected 
(5) If you are installing the Expansion PCB, proceed to the 
next page. Otherwise, replace the KSU cover and secure 
,.. : 
. >: 
._ 
: 
:. :‘ : ‘. 
it with the four screws; 
then proceed to page 3-15, MOUNT 
THE KSU. 
***************************************************************** 
* 
CAUTION * 
* If the KSU is taken out of service, 
be sure to insert a piece * 
* of paper between the battery and the clip to break the * 
* contact. 
Otherwise, the battery will continue to discharge 
* 
* and will eventually have to be replaced. * 
t**************************************************************** 
FIGURE 3-7. KSU COMPONENT LOCATIONS 
t 
AC FUSE 
2A,250V,SLOW-BLOW 
STATION FUSES 
IA, 25OV, 
FAST-ACTING i ‘.. 
Page 3-14