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

							OVERVIEW 
Issue 2. June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALIATION & MAINTENANCE 
4. FEATURES SUMMARY 
4.1 System, keyset, single-line set, and attendant fea- 
tures are listed below. 
Those features marked with an 
asterisk (*) require additional equipment. 
For complete 
descriptions and operating instructions, refer to the 
SPECIFICATIONS and FEATURES sections of this 
manual. 
A. SYSTEM FEATURES 
Hardware and General System Features 
Flexible incoming ring assignments (alternate point 
answering) 
Flexible night ringing arrangement (night ring 
mode) 
Database battery back-up 
Variable system timers 
l * Optional external music source 
l * Optional external paging equipment 
l * Optional system battery back-up 
l * Optional repeaters for amplified CO lines 
l * Optional doorbox 
l * Optional voice mail system or answering machine 
l * Optional facsimile machine 
l * Optional station message detail recording (SMDR) 
adapter and output device (for printing station call 
data and database reports) 
System Organization and Record Keeping 
Features 
l Internal and external paging zones 
l System alarm display and reporting 
l * Optional SMDR and database reports 
Outside Call Features 
l Dual-tone multi-frequency (DTMF) or dial-pulse 
signalling 
l CO line restriction 
l Toll restriction 
l Programmable CO hookflash 
l Automatic recall timers 
l Day and night modes of operation 
l Busy CO line callback (queue) 
General Station Features 
l Outside call waiting 
l Privacy release 
l * Music-on-hold 
l * Internal and external paging 
l Private intercom calls 
l Intercom camp-on and call waiting 
0 Night ring answer 
B. KEYSET FEATURES 
Six line keys 
Feature keys (six on Standard Keyseta, 12 on Execu- 
tive Keysets and GLX-Plus Keysets) 
LED indications 
Direction station selection/busy lamp field @SS/ 
BLF) keys on Executive and GLX-Plus Keysets 
Volume controls 
NOTE: GLX-Plus Keysets, which are equipped 
with audio integrated module circuitry, allow the 
users to individually control voice and tone volume 
levels for intercom calls, outside calls, background 
music, etc. 
Immediate ringing 
Off-hook ringing 
Ring intercom first 
l * Handset amplifier compatible 
Integrated speakerphone 
Handsfree answering of intercom calls 
Individual hold on the Executive and GLX-Plus 
Keysets 
Call transfer from the Executive and GLX-Plus Key- 
sets 
Line key skipping 
On-hook dialing 
DSS/BLF key skipping on the Executive and GLX- 
Plus Keysets 
l * Headset compatible 
l * Data device and SMDR interface on the Executive 
and GLX-Plus Keysets 
l * Background music 
l Call privacy enable 
l Direct line key selection 
l System/station speed dialing 
l Last number redial 
l System hold 
0 Conference calls 
0 Do-not-disturb 
l Call forwarding (internal and to the public network) 
Page l-2  
						

							INTER-TEL PRACTICES OVERVIEW 
GLX-PLUS INSTALLATION & MAINTENANCE Issue 2, June 1993 
C. SINGLE-LINE FEATURES 
nels and/or circuits. The features with such capacities 
l Call forwarding (internal only) 
l Call waiting tones enable/disable 
l Reverse transfer are listed in the following table. 
FEATURE CAPACITY 
l Programmable single-line hookflash 
l Programmable intercom ring cadence (standard or 
extended) 
Paging zones 
Internal 
External : 
l Programmable audio path attenuation on a port-by- 
port basis (MB or 3db pad) 
Conference calls 
Parties per conference 
Simultaneous conferences 
5 
2 
D. ATTENDANT FEATURES 
l Responds to “0” as an intercom number 
l Receives attendant recalls 
0 System feature programming 
l System night ring mode programming 
l System speed-dial number programming 
E. MAXIMUM CAPACITIES 
4.2 Some of the features have maximum capacities 
that are dependent on the availability of system chan- 
System speed dialing 
Numbers per system 
Digits per number 
Station speed dialing 
Numbers per station 
Digits per entry 
Rediai numbers per station 
Digits per number 
Busy line callback (queue) requests 
per station 
Stations camped on to a station 
Stations camped on to a line 
30 
32 
9 
32 
1 
32 
6 
1 
12 
Page l-3  
						

							INTER-TEL PRACTICES SPECIFICATIONS 
GLX-PLUS INSTALLATION & MAINTENANCE Issue 2, June 1993 
1. 
2. 
3. 
4. 
5. Introduction ......................................................... 
Cabling And The Main Distribution Frame (MDF) ........................ 
A. Station Connections ............................................... 
B. Central Office (CO) Line Connections ............................... 
Key Service Unit (KSU) ............................................... 
A. KSU Description ................................................. 
B. Environmental Requirements ...................................... 
C. System Power Supply ............................................. 
D. Main Control Printed Circuit Board (PCB) ........................... 
E. Expansion PCB .................................................. 
F. Accessory Port Module (APM) ..................................... 
Station Instruments .................................................. 
A. Maximum Capacities ............................................. 
B. Keysets ......................................................... 
C. Single-Line Sets .................................................. 
Optional System Equipment ........................................... 
A. System Battery Back-up ........................................... 
B. Repeater Application For Amplified CO Lines ........................ 
C. Doorbox ........................................................ 
D. Answering Machine Or Voice Mail Unit .............................. 
E. FAX Machine .................................................... 
F. Station Message Detail Recording (SMDR) Adapter And Output Device . . 
1. INTRODUCTION 
SPECIFICATIONS 
CONTENTS PAGE 
1.1 This section of the manual describes the following 
GLX-Plus System hardware: 
Cabling and the Main Distribution Frame 
- (MT 
- Key Service Unit (KSU) 
- Station Instruments 
- 
Optional Equipment 
1.2 The GLX-Plus System has a basic capacity for 
three CO lines and eight keysets. Installing the optional 
Expansion printed circuit board (PCB) increases the 
system capacity to six CO lines and 12 keysets. Or, 
installing the optional Accessory Port Module (APM) 
increases the system capacity to six CO lines, 10 key- 
sets, and two single-line devices. 
2-l 
2-2 
2-2 
2-2 
2-3 
2-3 
2-3 
2-5 
2-5 
2-5 
2-5 
2-9 
2-9 
2-9 
2-11 
2-12 
2-12 
2-12 
2-12 
2-12 
2-13 
2-13 
13 Avariety of station instruments can be used on the 
GLX-Plus System, including: 
l Standard Keyseta 
l Executive Keysets 
l GLX-Plus Keysets (display and non-display) 
l Industry-Standard Single-Line, Dual-Tone 
Multi-Frequency (DTMF) Sets 
1.4 The following optional system equipment can also 
be installed: 
l External music source; refer to page 2-3. 
l External paging equipment; refer to page 2-3. 
l Surge/spike protector; refer to page 2-5. 
l System battery back-up; refer to page 2-12. 
0 CO repeater application; refer to page 2-12. 
0 Doorbox; refer to page 2-12. 
l Voice mail or answering machine; refer to page 
2-12. 
Page 2-l  
						

							SPECIFICATIONS 
Issue 2, June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE 
0 Facsimile machine; refer to page 2-13. 
l Station Message Detail Recording (SMDR) Adapter 
and output device, refer to page 2-13. 
2. CABLING AND THE MAIN 
DISTRIBUTION FRAME (MDF) 
2.1 Connections between the KSU, CO lines, and sta- 
tion instruments are made at the MDF. The MDF re- 
quires at least a 3 x 4-foot (0.9 
x l.Zmeter), g-inch 
plywood backboard. This will allow room to mount the 
KSU, connecting blocks, modular jack assemblies, and 
any optional peripheral equipmeni. 
A. STATION CONNECTIONS 
2.2 Two-pair twisted cable is run in a star (home-run) 
configuration from the KSU to each station location. All 
station cables are terminated on the 66Ml-50-type con- 
necting block that is mounted on the MDF backboard. 
The other end of each station cable is terminated on a 
four-conductor modular jack assembly at the station 
location. As an interface between the station block and 
the KSU, one end of a 25pair cable is terminated on the 
block; the other end has a female amphenol-type con- 
nector that attaches to the male connector on the KSU. 
Finally, bridging clips are installed to complete the con- 
nections on the block. 
NOTE: To avoid possible ringing crosstalk, be sure to 
locate the station terminal block close to the KSU (the 
25pair cable between the block and the KSU should be 
less than three feet in length), and do not run the station 
cabling for single-line devices in parallel with the sta- 
tion cabling for keysets. 
B. CENTRAL OFFICE (CO) LINE 
CONNECTIONS 
23 As specified in FCC Regulations, the CO lines 
should be terminated on telephone company RJ14 (C or 
W) jacks or on an RJ21X block. Three methods of termi- 
nating CO lines are provided in the INSTALLATION 
section, along with complete details about necessary 
supplies and procedures. The three methods are as fol- 
lows: 
l If the CO lines are terminated on RJ14 jacks 
mounted near the MDF: Using two-pair mod-to- 
mod line cords, every two CO lines are connected 
directly to the corresponding CO jacks on the KSU. CAUTION 
If the above installation method is used, the light- 
ning protection procedures outlined in paragraph 
2.4 cannot be followed. For lightning protection ca- 
pability, use one of the following installation meth- 
ods instead. 
l If the CO lines are terminated on RJ14 jacks 
mounted away from the MDF: Using two-pair 
mod-to-mod line cords, every two CO lines are first 
terminated from the RJ14 jacks onto four-conductor 
modular jack assemblies mounted next to the RJ14 
jacks. Then, using standard two-pair cable, the CO 
lines are extended to modular jack assemblies 
mounted on the MDF backboard. Finally, two-pair 
mod-to-mod line cords complete the connection 
from the modular jack assemblies to the correspond- 
ing CO jacks on the KSU. For a diagram of this 
method, see page 3-13. 
0 If the CO lines are terminated on an RJ21X 
block A 25pair cable terminates the CO lines from 
the RJ21X block onto a 66Ml-50-type connecting 
block on the MDF backboard. Then, for every two 
CO lines, two-pair cable (or cross-connect cable) is 
connected from the CO block to four-conductor 
modular jack assemblies mounted next to the KSU. 
Finally, two-pair mod-to-mod line cords complete 
the connection from the modular jack assemblies to 
the corresponding CO jacks on the KSU. For a dia- 
gram of this method, refer to page 3-14. 
2.4 It is recommended that gas discharge tubes with 
silicon avalanche suppressors be installed on all CO 
lines for lightning protection. Also, in areas with fie- 
quent occurrences of lightning, it is recommended that 
the cable between the telephone company termination 
and the gas discharge tubes be at least 75 feet long (the 
cable may be coiled up if desired). 
2.5 The following CO line characteristics may be re- 
quested by the telephone company before the system is 
installed. 
Loss from: 
CO to keyset WB (@lkHz, 0 ft.) 
CO to single-line set OdB (@lkHz, 0 ft.) 
co to co OdB (@lkHz, 0 ft.) 
Ringer equivalence 0.2A 
Ringing voltage 4OVRMS minimum 
PROTECTION 
Tip-to-ring 25OVRMS transient 
Page 2-2  
						

							INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE SPECJFICATIONS Issue 2, June 1993 
3. KEY SERVICE UNIT (KSU) 
A. KSU DESCRIPTION 
3.1 
The KSU is a compact, wall-mounted unit that 
houses the system power supply, the Main Control PCB, 
and the optional Expansion PCB or the optional APM. 
The KSU performs all control and switching activities 
for the system, including: detecting incoming CO calls, 
storing speed-dial numbers, processing data-controlled 
features, and controlling the interaction between key- 
sets, single-line sets, CO lines, and intercom channels. 
Refer to the next page for a photograph of the KSU. 
3.2 The system is a microprocessor-controlled, space- 
division switching system. The 14 audio channels in- 
clude: 
CO lines 6 
Intercom 2 
Music-on-hold 2 
External page 1 
Conference 2 
Background music 1 
3.3 The KSU dimensions and weight are: 
Height 15 in. (38.1 cm.) 
Width 11.5 in. (29.2 cm.) 
Depth 4.25 in. (10.8 cm.) 
Weight 12 lb. (5.4 kg.) 
3.4 Inputs and outputs on the KSU side panels are as 
follows: 
l Three CO line modular jacks (CO lines l-2, 3-4, 
5-6) serve as inputs for two CO lines each. 
l The male amphenol-type connector (STN l-12) 
serves as the input for all keysets and single-line de- 
vices. 
l The external paging jack (E-PAGE), a J&inch mini- 
phone jack, is the output to a customer-provided 
0 
paging amplifier. For installation information, refer 
to page 3-31. 
The music jack (an RCA-type phono jack) is the in- 
put for a customer-provided external music source, 
such as a radio, tape player, etc. For installation in- 
formation, refer to page 3-31. 
NOTE: Current KSUs have a battery back-up jack 
(BAIT 3OV) that is the input for a customer-provided 
battery charger and/or 30V battery pack. This jack is be- 
ing removed on future models. In place of the battery 
back-up jack, Inter-Tel recommends using an uninter- 
ruptable Power supply (UPS) or standby power supply 
(SPS) unit. For additional specifications and installation 
information, refer to pages 2-12 and 3-33. 
B. ENVIRONMENTAL REQUIREMENTS 
3.5 The KSU and the station instruments require the 
following environmental conditions: 
BFQUIREMENTS IN- 
Temperature 
32” to 80” F 4” to 18.5’ F 
WV) 0” to 26.50 c -15.5’ to 85” c 
Temperature 32” to 113” F -40” to 18Y F 
(Station Instruments) 
oat0 45’C 
-400 t0 850 c 
Relative Humidity 20% to 85% 0% to 85% 
(Non-Condensing) 
Altitude 
up to 10,ooo ft. up to 40,ooo ft. 
(3,048 m.) (12,192 m.) 
NOTE: It is recommended that the maximum operating 
temperature (as listed above) never be exceeded. There- 
fore, when installing the KSU and station instruments, 
allow a sufficient margin for error in case of air condi- 
tioning failure, routine mechanical maintenance, plant 
shutdown, etc. As a general guideline, if the conditions 
are suitable for offrce personnel, they are also suitable 
for all equipment and station instrument operation. A 
properly controlled environment will help to extend the 
operating life of the equipment. 
Page 2-3  
						

							SPECIFICATIONS Issue 2, June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE 
FIGURE 2-l. 
KEY SERVICE UNIT (KSU) 
3 C.O. 
MODULAR JACKS 
AMPHENOL-TYPE 
CONNECTOR - 
FOR ALL KEYSETS 
- RUN LED 
I. ,. -:.-.. .’ 
ERROR LED 
POWER 
ON/OFF SWITCH 
PROGRAM ENABLE 
ON/OFF SWITCH 
EXTERNAL 
I PAGING JACK 
MUSIC JACK 
1 
BATTERY 
SACK-UP JACK 
AC FUSE 
AC POWER CORD 
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							INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE SPECIFICATIONS 
Issue 2, June 1993 
C. SYSTEM POWER SUPPLY 
3.6 The KSU power supply, which converts the AC in- 
put voltage to the DC voltages required by the system, 
musk have an isolated, dedicated, 10%125VAC, 15A, 
57-63Hz, single-phase commercial power source (for 
more details, refer to the first NOTE on page 3-4 in IN- 
STALLATION). 
3.7 A 2A, 25OV, slow-blow fuse protects the system 
from excessive current draw. For continued system 
protection, replace only with a fuse of the same type and 
rating. 
Voltage Surge and Spike Protection 
3.8 To reduce the effects of AC voltage surges and 
spikes that may cause system malfunctions, false logic, 
and/or damage to the electronic components, a surge/ 
spike protector is recommended. Check the manufactur- 
er’s specifications to ensure that the surge/spike 
protector meets the following requirements: 
l Clamp voltage transients at 300VDC within 5 nano- 
seconds when exposed to waveforms as described in 
the ANSI/IEEE Standard C62.41-1980 (IEEE 587). 
l Reduces RFI/EMI noise by at least 20dB at fiequen- 
ties between 5kHz and 3OMHz. 
D. MAIN CONTROL PRINTED CIRCUIT 
BOARD (PCB) 
3.9 The Main Control PCB contains the main control- 
ling microprocessor and its associated control logic and 
memory circuitry, a battery for database protection, sys- 
tem timers, circuitry for music-on-hold and external 
paging, and circuitry for three CO lines and eight key- 
sets. Refer to Figure 2-2 on the next page for a 
photograph of the PCB. 
NOTE: With the current software, there is only one 
ROM (UB4) on the Main Control PCB. 
3.10 The main Control PCB functions under the con- 
trol of a program that is activated when the KSU is pow- 
ered up. The PCB is in constant communication with the 
microprocessor in each keyset. 
3.11 There are Sk bytes of random-access memory 
(RAM) and a minimum of 16k bytes of read-only 
memory (ROM) for use by the Main Control PCB. The 
software code for the main generic program is stored in 
the non-volatile ROM memory, and the programmed 
database and speed-dial numbers are stored in the RAM 
memory. 3.12 The RAM memory is protected by a lithium bat- 
tery. The battery will protect the programmed database 
until the accumulated system downtime exceeds one 
year. Under normal system use, the battery should last 
approximately 10 years. The PCB is shipped with a 
piece of paper between the battery and the battery clip to 
prevent any discharge until the KSU is installed. 
3.13 When the system is initialized, all CO lines are 
configured for DTMF signalling. If necessary, some or 
all of the lines can be reprogrammed for dial-pulse sig- 
nailing through database programming. 
3.14 If a customer-provided music source is installed, 
the music-on-hold circuitry provides two channels of 
music for two CO lines on hold. Refer to page 4-15 for 
more information. In addition, the music source can be 
heard through keyset speakers as background music, 
and camped-on intercom callers hear the music while 
waiting. The music-on-hold circuitry automatically 
holds the volume to a predetermined level that is slightly 
lower than normal voice volume, as required by FCC 
regulations. The optimum input level is l.OVRMS 
U’W 
3.15 There are three lA, WOV, fast-acting fuses on the 
PCB to protect the KSU and keysets from excessive cur- 
rent flow. For continued protection, replace only with 
fuses of the same type and rating. 
E. EXPANSION PCB 
3.16 Circuitry for an additional three CO lines and 
four keyseta can be added to the Main Control PCB to 
expand the system’s capacity to six CO lines and 12 key- 
sets. The circuitry is contained on an optional Expan- 
sion PCB that plugs into the Main Control PCB. Refer to 
Figure 2-3 on page 2-7 for a photograph of the PCB. 
F. ACCESSORY PORT MODULE (APM) 
3.17 Circuitry for an additional three CO lines, two 
keysets, and two AC-ringing single-line devices can be 
added to the Main Control PCB to expand the system’s 
capacity to six CO lines, 10 keysets, and two single-line 
devices. The circuitry is contained on an optional APM 
that plugs into the Main Control PCB. Refer to Figure 
2-4 on page 2-8 for a drawing of the APM. 
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 canbe added to the KSU. 
It is not possible to install both boards. 
Page 2-5  
						

							AM 
SPECIFICATIONS 
Issue 2, June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION & MAINTENANCE 
FIGURE 2-2. MAIN CONTROL PCB 
3 C.O. 
MODULAR. 
JACKS 
MALE 
IPHENOL-TYP 
CONNECTOR 
FOR ALL 
KEYSETS 
POWER 
SUPPLY 
A LITHIUM BATTERY 
n 3 3 STATION FUSES 
n 2 l?$ll~~EGRATED ‘OR 
‘OR 
Page 2-6  
						

							SPECIFICATIONS 
Issue 2, June 1993 INTER-TEL PRACTICES 
GLX-PLUS INSTALLATION % MAINTENANCE 
FIGURE 2-4. ACCESSORY PORT MODULE (APM) 
ROM INTEGRATED CIRCUIT 
Page 2-8