NEC Xen Alpha Installation Manual

							Installation Manual  •  •  •  System Overview Page 21A6-506000-642-01
Set Tone 2 500 Hz (I)
540 (E)N/A
Timed Alarm 1024 Hz (I)
1100 Hz (E)N/A
Tone Override 500 Hz (I)
540 HZ (E)N/A
Trunk Queuing 500 Hz (I)
540 HZ (E)N/A
System Tone
(Fixed)Frequency (Hz)
(Fixed)ModulationCycle
ON
OFF0.5 sec.
ON
OFF.250 sec.
.125 sec.
ON
OFF2 sec.
ON
OFF0.5 sec.
0.5 sec. 
						

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Multiline Terminal Flash Patterns Table
Table 1-7: Multiline LED Patterns
0 0.5 1.0 1.5 2.0 sec
LEDConditionCol.Flash Pattern
Line Key
I-Use
Busy
Incoming Call
I-Hold
Call Hold
Hold Recall
Transfer RecallGreen
Red
Red
Green
Red
Green
Green
Microphone
ON
MonitoredRed
Red
ICM
I-Use
ICM Incoming CallRed
Red
Large LED
Incoming Internal Call
Incoming CO Line
Voice Mail MessageRed
Green
Red
Speaker
ON
System Data Entry
MonitorRed
Red
Red
Conference
Conference in 
Progress
All Conference Circuits 
in Use
Hold Conference Call
ICM Call Hold
SPD ConfirmationRed
Red
Red
Red
Red
Answer
Incoming Trunk
PresetRed
Red
Call
Trunk Selected
Preset
No Trunks AvailableGreen
Red
Red
Function
Callback Set
DND, Call FWD
Auto Redial Set
ON (to Set Function)Red
Red
Red
Red
LNR/SPD
CO Line Key Seized
Exclusive HoldGreen
Green
BLF or DSS 
Key
Use, Hold, ICM Called
DND, Call Fwd All Set 
Special Mode (While 
pressing FNC key or 
going off-line)Red
Red
Red 
						

							Installation Manual  •  •  •  System Overview Page 23A6-506000-642-01
DSS/BLF LED Indications Table
Table 1-8: DSS/BLF LED Indications
FunctionColourStatus
IdleOFF
TalkingRed ON
HoldRed ON
FWD All & DNDRed (flashing) ON
Other Use (Multiline Terminal is in off-line 
mode, the station user is programming, 
Feature Access/One-Touch Key 
programming, etc.)Red (flashing) ON 
						

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							Installation Manual  •  •  •  KSU Installation Page 23
A6-506000-642-01
Xen AlphaRelease 1.0
SECTION 1
GENERAL
INFORMATION
This section provides the requirements for installing the system. The installer should be
familiar with this section before installing the system.
SECTION 2
SITE
PREPARATION
The technician should plan the installation before actual work begins. Advanced planning
will minimize time, cost and disruption of the customer’s business activities. Additional
benefits include flexibility for changes and expansion, efficient maintenance and increased
customer satisfaction.
Precautionary Information
The following warnings shall be observed during installation:
1. Never install telephone wiring during a lightning storm.
2. Never install telephone jacks in wet locations unless the jack is specifically designed for
wet locations
3. Never touch uninsulated telephone wires or terminals unless the telephone line has
been disconnected at the network interface.
4. Use caution when installing or modifying telephone lines.
Site Survey
Inmost cases, a survey of the customer’s premises is needed to develop cost estimates of
the installation. Preliminary information is used to determine the placement of the Main
Distribution Frame (MDF). A second visit to the site may be necessary to obtain the exact
dimensions of the area selected for MDF, cable lengths and possible IDF (intermediate
Distribution Frame) locations.
Site Limitations
Installation of a telephone system is seldom a routine procedure. The uniqueness of each
customer’s situation requires a tailored approach to each job. In selecting a permanent site
for the MDF, the technician may encounter problems such as, but not limited to the following:
!Limited space is available and must be used regardless of its suitability.
!The available space may be adequate, but may pose one or more environmental
hazards.
!The proposed location has limitations. Such as insufficient lighting or the lack of a
suitable ground for grounding the KSUs.
Whatever the nature of the adversities encountered, the technician must make the
necessary decisions to arrive at the best possible solution for installing the equipment. It is
beyond the scope of this document to cover all possible situations, precautions and actions.
CHAPTER 
2KSU Installation 
						

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Site Selection Conditions
KSU Installation Site
The following conditions should be met at the site selected for the KSU.
!The KSUs should be wall mounted to protect against accident or flooding.
!The KSU should not be located directly beneath pipes, due to the possibility of leaks or
condensation causing damage to the equipment.
!The area where the KSU is to be located must be free of corrosive and inflammable
gases, excessive chemical or industrial dusts and other materials that could cause a
hazard to personal or to the proper functioning of the equipment.
!Operating ambient temperature and humidity must be within the limits specified in
Section 2.6 – Environmental Conditions in this chapter.
!The operation of the system is virtually noiseless and allows a wide selection of
installation sites. Care should be taken to ensure the KSUs do not present a hazard to
office traffic. For purposes of economy, a central location to minimise cabling is
often used.
!The basic KSU weighs approximately 4 Kg. Select a strong wall for mounting purposes.
!Place the KSU according tot he following spacing specifications
• Space distance between the KSU and the ceiling: 50 cm or more
• Space distance on both sides of the KSU: 30 cm or more
• Space distance on front of KSU: 50 cm or more
!Avoid connection of the KSU to an AC receptacle used in common with any other
device (computer, facsimile machine, copier, etc.)
!Ensure that any AC Outlet to be connected is properly grounded.
!Avoid connection of KSU near radio receivers or electrical noise generators (e.g.
welding equipment, machinery).
CAUTION
1. The socket outlet shall be installed near the equipment and shall be easily accessible.
2. Plug the system into the mains supply (240 V ac) before terminating a
telecommunications network conductor to the system.
3. Danger of explosion if batteries are incorrectly replaced. Replace only with the same or
equivalent type recommended by the manufacturer. Dispose of used batteries
according to the manufacturers instructions
Multiline Telephone Installation Site
The following conditions should be met at the site selected for MLTs.
!Ensure the cable length and line resistance (loop), between the KSU and the
telephones comply with the specifications shown in Table 1-1: Multiline Telephone Loop
Resistance and Cable Length Multiline Telephone Loop Resistance and Cable Length.
!Some devices require an external power supply. Select a place where they can be
easily connected to an AC outlet.
!Telephones intended for handsfree use should be kept away from areas subject to loud
noise or echoing. 
						

							Installation Manual  •  •  •  KSU Installation Page  25A6-506000-642-01
SECTION 3
INSTALLING THE
KEY SERVICE
UNIT (KSU)
Installation Precautions
Before installation and cabling of the KSU, observe the below precautions.
!Before starting the work, be sure the KSU power switch is OFF and disconnect the
power cord from the AC outlet.
!Do not directly touch the soldered surfaces of the KTUs with you hands.
!Extreme care must be taken to avoid STATIC DISCHARGE when handling ICs and
KTUs – an earthed wrist strap must be worn.
The Key Service Unit
The B614-B13 KSU is the system cabinet that houses a power supply, battery backup and
fixed slots for installing option/expansion cards. The KSU is wall mounted. (Refer to Figure
2-1:: Front View of a KSU, Pg 25.)
Figure 2-1: Front View of a KSU 
						

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Removing the KSU Cover
Before wall mounting the KSU, the KSU cover must be removed. Below is a diagram
showing how to remove the cover of the KSU.
1. Remove the cover by loosening the two bottom screws with a philips head screwdriver
(the screws remain in the cover to keep from misplacing them). Pull the cover away
from the KSU and lift upward.
2. To replace the cover, locate the tabs on the top of the cover into the slots in the top of
the base and then push the bottom of the cover inwards. Tighten the two cover screws.
Figure 2-2: How to Remove the KSU Cover
ON/OFF 
Switch
Loosen or Tighten Screws