Inter-Tel Glx Plus Issue 2 Installation And Field Maintenance Manual

							INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION % MAINTENANCE INSTALLATION Issue 2, June 1993 
FIGURE 3-5. 
CO LINE TERMINATIONS FROM RJ14 JACKS 
TO C.O. 
‘zLIN~SO~ 
PER JACK) 
2-PAIR 
MOD-TO-MOD 
LINE CORDS P-PAIR 
CABLES 
MDF 
BACK- 
BOARD 
_ 2-PAIR MOD-TO-MOD 
LINE CORDS -KSU 
FIGURE 3-6. MODULAR JACK ASSEMBLY WIRING FOR CO LINES 
TIP 1 TIP 2 
RING 1 RING 
2 
Page 3-13  
						

							JNSTALLATJON INTER-TEL PRACTICES 
Issue 2. June 1993 GLX-PLUS INSTALLATION & MAINTENANCE 
C. CO LINES TERMINATED ON AN RJ21X 
BLOCK 
5.5 Before using this procedure, read the 
IMPOR- 
ZWT NOTES following paragraph 5.2 on page 3-12. 
Also, refer to Figure 3-7 below for a diagram of the 
complete layout. 
(1) 
(2) 
(3) 
Mount a CO (66Ml-50-type) connecting block 
on the MDF backboard. 
For every two CO lines, mount a four-conductor 
modular jack assembly on the MDF backboard 
near the KSU. The modular jack assemblies 
should be Positioned betveen the CO block 
(mounted in step 1) and the KSU. 
For each modular jack assembly (mounted in 
step 2), connect a two-pair cable (or cross-con- 
nect cable) from it to the CO block as follows: 
a. Terminate one end of a two-pair cable on 
each modular jack assembly. Refer to Figure 
3-6 on the previous page. b. Terminate the other end of the two-pair cable 
on the right side of the CO block, with CO 
line 1 tip and ring first, then CO line 2 tip and 
ring, and so on. 
(4) Plug one end of a two-pair mod-to-mod line cord 
into each modular jack assembly (mounted in 
step 2). The other end will later be plugged into 
the corresponding CO jack on the KSU. 
(5) To interface between the CO block and the 
RJ21X block: 
a. 
b. 
C. 
d. Run a 25pair cable between the CO block 
and the RJ21X block. 
Terminate the MDF end of the 25pair cable 
on the Zefi side of the CO block. Install bridg- 
ing clips to complete the connections. 
On the RJ21X end of the 25-pair cable, attach 
a 50-pin male amphenol-type connector. 
Plug the male connector into the female con- 
nector on the RJ21X block. 
FIGURE 3-7. CO LINE TERMINATIONS FROM AN RJ2lX BLOCK 
66Ml-50- TYPE 
CONNECTING BLOCK- 4-CONDUCTOR MODULAR 
/-JACK ASSEMBLIES 
RJ2lX 
AMPHENOL-TYPE 
25-PAIR 
TERMINATION 
CABLE MDF 
3ACK- 
I I 
30ARD 1 
I I 
E-PAIR 1 
CABLES 
L 2-PAIR MOD-TO-MOD 
LINE CORDS .KSU 
Page 3-14  
						

							INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE INSTALLATION 
Issue 2, June 1993 
6. KSU INSTALLATION 
A. UNPACK AND INSPECT THE KSU 
(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. 
CAUTION 
The PCBs contain static-sensitive components 
Lift them only by the edges and carefully handle 
the components while inspecting them in the next 
step. 
(2) Inspect the fuses for the correct voltage and cur- 
rent rating. The AC fuse (2/i, 25OV, slow-blow) 
is accessible from the outer, right side of the 
K!XJ. The three station fuses (1A 25OV, fast-act- 
ing) are mounted on the lower right comer of the 
Main Control PCB. Ensure that the ROM inte- 
grated circuit is properly seated in socket UB4. 
(See Figure 3-8 below.) 
NOTE: If the Main Control PCB has a jumper 
strap J20 located above the integrated circuit UCl, make sure the strap is in the GH position. If 
the jumper strap is placed in the HI position, the 
system may function erratically. 
(3) If the KSU or any of its components are dam- 
aged, contact your supplier immediately. 
(4) You MUST activate the lithium battery by re- 
moving the red piece of paper located between it 
and the battery clip. Otherwise, the database 
memory will not be protected during a power 
outage. 
(5) If you are installing the Expansion PCB or 
Accessory Port Module, proceed to section B or 
C. Otherwise, replace the KSU cover and secure 
it with the four screws; then proceed to section D. 
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. 
FIGURE 3-8. KSU COMPONENT LOCATIONS 
II 
UB4 
i 
\- STATION FUSES 
IA,250V, 
FAST-ACTING 
r 
AC FUSE 
2A,25OV,SLOW-BLOW 
Page 3-15  
						

							INSTALLATION 
Issue 2. June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE 
NOTE: If you are adding the Expansion PCB after the 
system has been installed, turn off the KSU AC power 
switch (PWR), unplug the KSU AC power cord, and un- 
plug the 25pair station cable and C1) line cords from the 
KSU. Remove the KSU from the wall and open it 
according to the instructions in section A. 
(1) 
(2) 
(3) Remove the six retaining screws (eight in some 
KSUs) holding the Main Control PCB to the 
KSU housing. Handle PCBs by the edges only; 
they contain static-sensitive components. 
Carefully lift the PCB, turn it over, and hold it by 
the edges. Take care not to dislodge any of the 
wires that connect the components to the 
switches or connectors. 
With the solder sides of the two PCBs facing 
each other, carefully insert the Expansion PCB’s 
seven 8-pin connectors and the seven stand-o& 
into the corresponding sockets and holes on the 
Main Control PCB as shown in Figure 3-9 on the 
next page. 
NOTE: Older Expansion PCBs and Main Con- 
trol PCBs have only five stand-offs and five in- 
sertion holes. To install a new Expansion PCB on 
an old Main Control Board, first remove the two 
extra stand-of%. 
(4) 
(5) 
(6) To ensure that the Expansion PCB is properly 
seated, press firmly on the back of each connec- 
tor and stand-off. 
Carefully turn the Main Control PCB over and 
return it to its original position in the KSU hous- 
ing. Replace the six (or eight) screws. 
Replace the KSU cover and the retaining screws.  B. INSTALL THE EXPANSION PCB IN THE 
KSU 
NOTE: Only one Expansion PCB or only one APM can 
be added to the KSU. It is not possible to install both 
boards. 
6.1 The Main Control PCB has circuitry for 3 CO lines 
and 8 keysets. The Expansion PCB adds circuitry for 3 
CO lines and 4 keysets, completing the 6 X 12 configu- 
ration. C. INSTALL TEIE ACCESSORY PORT 
MODULE (APM) IN THE KSU 
NOTE: The APM is supported only on KSUs equipped 
with the current 827.4012 software. Also, only one Ex- 
pansion PCB or only one APM can be added to the KSU. 
It is not possible to install both boards. 
6.2 The Main Control PCB has circuitry for 3 CO lines 
and 8 keysets. The APM adds circuitry for 3 CO lines, 2 
keysets, and 2 single-line devices, completing.the 6 
X 
12 configuration. 
NOTE: If you are adding the APM after the system has 
been installed, turn off the KSU AC power switch 
(PWR), unplug the KSU AC power cord, and unplug the 
25pair station cable and CO line cords from the KSU. 
Remove the KSU from the wall and open it according to 
the instructions in section A. 
(1) 
(2) 
(3) 
(4 
(5) 
(6) 
Remove the six retaining screws (eight in some 
KsUs) holding the Main Control PCB to the 
KSU housing. Handle PCBs by the edges only; 
they contain static-sensitive components. 
Carefully lift the PCB, turn it over, and hold it by 
the edges. Take care not to dislodge any of the 
wires that connect the components to the 
switches or connectors. 
With the solder sides of the two PCBs facing 
each other, carefully insert the APM’s seven 
S-pin connectors and the four stand-offs into the 
corresponding sockets and holes on the Main 
Control PCB as shown in Figure 3-10 on the next 
page. 
To ensure that the APM is properly seated, press 
firmly on the back of each connector and stand- 
Off. 
Carefully turn the Main Control PCB over and 
return it to its original position in the KSU hous- 
ing. Replace the six (or eight) screws. 
Replace the KSU cover and the retaining screws. 
Page 3-16  
						

							INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE INSTALLATION 
Issue 2, June 1993 
FIGURE 3-9. INSTALL THE EXPANSION PCB 
c -- @iv’ 
EXPANSION PCS 
FIGURE 3-10. INSTALL THE APM 
MAIN CONTROL PCB 
Page 3-17  
						

							INSTALLATION 
Issue 2, June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE 
D. MOUNT THE KSU 
(3) Drive a #KS pan-head screw into the center of each 
marking, allowing the head of the screw to pro- 
(1) Refer to Figure 3-11 below. On a large sheet of trude y4- to J$inch (0.6 to 1.2 centimeters). 
paper, trace the outline of the back of the KSU 
and the two mounting screw holes. (4) Hang the KSU on the screws. Adjust the screws if 
necessary to ensure that the KSU is securely 
(2) Transfer the mounting hole markings to the MDF mounted. 
backboard where the KSU will be positioned. 
(5) DO 
NOT plug in the AC power cord at this time. 
FIGURE 3-11. WALL MOUNT THE KSU 
39/16 in. 3-15116 in. 3-9116 in. 
(9 cm.) (10 cm.) (9 cm.) 
I- I- 
.- 
/ -1. 
!H@@ 
I 
‘/ 
 
. ‘ 
‘ 
4 :: 
\‘ 
‘ 
/ 
> 
. 
. 
. 
, 
A- 
‘. 
$ 
l-5/8 in. 
1. (4 cm.) 
7/s in, 
(3.2 cm.) 
Page 3-18  
						

							INTER-TEL PRACTICES 
GLX-PLUS INSTALLATJON & MAINTENANCE INSTALIATION 
Issue,2, June 1993 
Grounding Requirements 
6.3 The KSU must be properly grounded to an earth 
ground point. A copper, cold water pipe is usually a 
good ground point 
NOTE: According to UL 1459, “an insulated grounding 
conductor that is not smaller in size and equivalent in in- 
sulation material and thickness to the grounded and un- 
grounded branch-circuit supply conductors, except that 
it is green with or without one or more yellow stripes, is 
to be installed as part of the circuit that supplies the 
product or system.” Also, “the attachment-plug recep 
tacles in the vicinity of the product or system are all to be 
of a grounding type, and the grounding conductors serv- 
ing these receptacles are to be connected to earth ground 
at the service equipment.” 
6.4 The grounding wire should be 1OAWG or larger 
and should not exceed 25 feet (7.5 meters) to help pro- 
vide RFI/EMI protection, or should not exceed 10 feet 
(3 meters) to help provide both RFI/EMI and lightning 
protection. 
6.5 To ground the system (see Figure 3-12 below): 
(1) Ensure that the system’s AC Power cable is not 
plugged into the AC outlet. 
(2) Mount a grounding terminal on the MDF back- 
board and connect it to: a. An earth ground. 
b. The ground lug on the bottom of the KSU. 
c. Battery compartments, if used. 
d. CO line gas discharge tubes, if used. 
6.6 If AC Power-related problems appear on the sys- 
tem while in operation, one of the following two meth- 
ods can be used to test the ground. 
Use a digital multimeter to measure the difference of 
Potential between the KSU ground point and the 
power neutral, and between the KSU ground point 
and the third wire ground. If the voltage measure- 
ment exceeds OSV, noise may develop on the sys- 
tem. If this occurs, call an electrician. 
Use a Megger to test the ground Point. (A Megger 
should be available through the local power compa- 
ny.) The reading should be 5 ohms or less. 
Unplug the AC power cord from the outlet and insert 
a ground isolation plug into the outlet. Plug the AC 
power cord into the ground isolation plug. If the 
problem ceases, call an electrician. When finished, 
remove the ground isolation plug to restore ground 
protection. 
FIGURE 3-12. KSU GROUNDING 
Bond KSU ground to 
COLD WATER PIPE 
I 
- 
Page 3-19  
						

							INSTALLATION INTER-TEL PRACTICES 
Issue 2, June 1993 
GLX-PLUS INSTALLATION & MAINTENANCE 
6.7 If the KSU and telco protector are separated by 
more than 30 feet or if the telco protector ground is inac- 
cessible, additional protection for the C.O. line pairs is 
recommended. Use a Cook gas protector (part number 
502Al-2-LCGX for 2-line, 502Al-4-LCGX for 
4-line, 502Al-6-LCGX for 6-line) or equivalent and 
connect a 1OAWG wire between the KSU grounding lug and the Cook protector’s grounding lug as shown below. 
Then connect a wire (1OAWGor larger as determined by 
the length) between the protector and an approved 
ground (such as grounded building steel, cold water 
pipe, concrete encased ground, or a ground ring). The 
resistance on this wire must be -03 ohms or less. 
FIGURE 3-13. KSU GROUNDING 
CO LINES 
PROTECTOR CO LINES GLX-PLUS 
KSU 
/ ~~~~~~~~  IO*WGWRE ’ v 
- 
- 
TELCO GROUND 
APPROVED GROUND 
Page 3-20  
						

							INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION 8z MAINTENANCE INSTALLATION 
Issue 2, June 1993 
E. COMPLETE ALL CONNECTIONS FOR 
THE KSU 
(1) To complete the station connections (from the 
station connecting block to the KSU), attach the 
station female amphenol-type connector to the (3) 
male connector on the left side of the KSU. 
(2) To complete the CO line connections (from the 
CO modular jacks mounted next to the KSU), 
plug each mod-to-mod CO line cord into the cor- 
(4) 
responding CO jack on the KSU. The first jack conuecta lines 1 and 2, the second jack connects 
lines 3 and 4, and the third jack connects lines 5 
and 6. 
Plug the recommended surge/spike protector 
into the designated AC outlet. Then plug the 
KSU AC power cord into the Protector. (Specifi- 
cations for the protector are on page 2-5.) 
Turn the AC power switch (PWR) to the ON 
position. 
FIGURE 3-14. 
COMPLETE THE KSU CONNECTIONS 
TO C.O. I 
TO STATIONS 
STATION 
CONNECTING 
BLOCK C.O. MODULAR 
JACK ASSEMBLIES 
AC POWER 
CORD 
SURGE/SPIKE 
AC OUTLET 
Page 3-21  
						

							INSTALLATION 
Issue 2, June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE 
7. STATION INSTALLATION 
A. KEYSET INSTALLATION 
7.1 Before installing keysets, unpack each one and 
check for damage. If items are damaged or missing, con- 
tact your supplier. Each keyset should have the follow- 
ing: 
0 Baseplate 
0 Extra blank key designation tabs 
l One six-foot, three-pair line cord 
l One handset 
l One four-conductor coiled handset cord 
l Slide-out directory card 
NOTE: The GLX-Plus Keyset is supported only on 
KSUs equipped with the current 827.4012 software. 
Also, GLX-Plus Keysets and handsets have been de- 
signed using “electret” microphone circuitry, rather 
than the “dynamic” microphone circuitry used on Stan- 
dard and Executive Keysets. Both types of keysets can 
be used together on the GLX-Plus System. However, if a 
dynamic handset is attached to an electret keyset, the 
handset transmit levels will be noticeably lower. If an 
electret handset is attached to a dynamic keyset, the 
handset will not transmit. 
Optional Liquid Crystal Display (LCD) 
7.2 GLX-Plus Keysets are available in both display 
and non-display models. Non-display GLX-Plus Key- 
sets can be converted to display keysets by installing an 
LCD Kit (part no. 828.1188) as outlined below. 
(1) 
(2) 
(3) 
(4) 
(5) Unpack the LCD kit. There should be a clear 
plastic display window, an LCD unit, a ribbon 
cable, and two small Phillips-head screws. 
Remove the keyset baseplate to expose the con- 
trol board that has the LCD connector. (Refer to 
Figure 3-15 on the next page.) 
Remove the line cord, handset cord, and speaker 
wires from their connectors on the control board. 
On the back of the keyset, remove the two screws 
that secure the faceplate assembly to the keyset 
housing. 
From the front of the keyset, release the tabs that 
secure the top edge of the faceplate assembly to 
the keyset housing. 
(6) 
(7) 
(8) 
(9) 
(10) 
(11) 
(12) 
(13) Starting with the right side, carefully lift the en- 
tire faceplate assembly away from the keyset 
housing. 
NOTE: On some keysets, there is a small tab 
protruding from the front, lower-left comer of 
the faceplate assembly into the keyset housing. 
Be careful not to break this tab when removing 
the faceplate assembly. 
Remove the cover from the display opening in 
the top of the faceplate assembly by releasing the 
tabs from the inside and pushing the cover out. 
From the inside of the faceplate assembly, insert 
one of the top comers of the clear plastic window 
into the side of the display opening. 
NOTE: The small lips on the end of the window 
should face to the inside of the faceplate assem- 
bly. Also, the window is beveled on the top and 
the bottom so that it will fit flush in only one di- 
rection. 
While slightly bending the window, insert the 
other top comer into the other side of the display 
opening, and slide the window up until it snaps 
into place. 
Remove the covering from the LCD unit and in- 
stall as follows: 
Insert one end of the ribbon cable into the 
black connector on the LCD unit. Ensure that 
the metal strips on the ribbon cable make 
contact with the metal tabs in the black con- 
nector. 
With the LCD unit facing up, insert the other 
end of the ribbon cable into the black connec- 
tor on the control board (see Figure 3-15). 
Turn the LCD unit over and position it on the 
plastic window so that the screw holes in the 
LCD unit align with the screw holes in the 
faceplate assembly. Install the two Phillips- 
head screws to hold the LCD unit in place. 
Carefully replace the entire faceplate assembly 
back in the keyset housing and replace the 
screws that hold it in place. 
Reconnect the line cord, handset cord, and 
speaker wires to their connectors on the control 
board. 
Replace the keyset baseplate. 
. . 
Page 3-22