NEC Xen Alpha Installation Manual

							Installation Manual  •  •  •  KSU Installation Page  37A6-506000-642-01
Adjust the music source to a suitable level by making an internal call, placing it on Hold and
listening to the music whilst adjusting the output level of the music source itself.
Figure 2-20: MOH/BGM Source Connection
External ROM Card
To upgrade the main system software of the Xen Alpha you will need an External ROM card
and an EPROM containing the new software. The ROM card can be used to upgrade many
systems and can be reused as new software versions are released by fitting a new EPROM.
Preparing the ROM Card:
1. Carefully remove the ROM card from its packaging, using a wrist strap connected to
protective earth to avoid static discharge.
2. Mount the new EPROM onto the ROM card into socket ICI.
!NOTE:Check for correct orientation of the EPROM and ensure that all pins are 
properly aligned over the socket before firmly pushing in the EPROM.
Figure 2-21: External ROM Card 
						

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To upgrade a Xen Alpha system:
1. Use PC Programming, download and ‘save to disk’ the current system setup.
2. Switch the system OFF.
3. Remove the cover from the KSU.
4. Locate connector CN11 (marked External ROM) on the mainboard and plug the ROM
card into it. 
Figure 2-22: Inserting the External ROM Card
5. Turn the system ON. LED LD1 on the ROM card and the LIVE LED on the mainboard
will light red. The ROM LED on the mainboard will flash red to indicate that the program
is in the process of being transferred.
6. Once the ROM LED has stopped flashing, turn the system OFF and remove the
ROM card.
7. Replace the KSU cover.
8. Turn the system ON.
9. Using PC Programming, upload the saved system setup. 
						

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SECTION 4
INSTALLING AN
ELECTRONIC
TELEPHONE UNIT
ETU
General Information
Installation Precautions
Before installation of the KTUs, observe the below precautions.
1. To prevent accidental damage to equipment, the power must be OFF during installation
and maintenance.
2. The KTUs used in this system make extensive use of CMOS technology. CMOS
technology is very susceptible to static; therefore extreme care must be taken to avoid
static discharge when handling KTUs.
KTU Installation
Be sure to mount the KTUs in the correct position inside the KSU. Make any connections
and switch settings on the KTUs before inserting them in the KSU. Also refer to Figure 2-23::
Installing a Vertically Mounted KTU, Pg 39.)
CAUTION
When a KTU is installed or removed, ensure that the power switch of
the KSU is in the OFF position.
Figure 2-23: Installing a Vertically Mounted KTU 
						

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Interface ETUs
ESI(8)-B13 ETU
The ESI ETU is an interface for Multiline Telephones and SLT Adapters and allows a further
eight such devices to be connected to the system. One ESI(8)-B13 ETU can be installed in
the system, providing a total of 14 Multiline telephones. These ESI ports are arranged as
follows:
Mainboard (Built-in ESI)! Extension Ports 01 to 06
ESI(8)-B13 ETU (CN4)! Extension Ports 07 to 14
To install the ESI(8)-B13 ETU:
1. Ensure that the system is turned OFF.
2. Remove the cover from the KSU.
3. Carefully remove the ETU from its packaging, using a wrist strap connected to the
frame ground on the KSU to avoid static discharge.
4. Locate connector CN4 (marked ESI) on the mainboard and slide the ETU between the
posts. Press the ETU down firmly to lock into place.
5. Using a philips head screwdriver, secure the ETU to the KSU by tightening the screw
captive in the metal bracket on the ETU.
6. Run the ESI cabling from the ETU to the external MDF. A single twisted-pair is required
for each connection and this is not polarity sensitive. Crimp the special connector
supplied to each cable pair.
7. Replace the KSU cover.
8. Turn the system ON.
9. Program the system as required, although the additional ports are automatically
assigned default values.
Figure 2-24: ESI(8)-B13 ETU
SLI(2)-B13 ETU
The SLI ETU is an interface for two Single Line telephones or other analogue devices such
as cordless telephones, facsimiles, modems and answering machines. One SLI(2)-B13
ETU can be installed in the system, taking the total number of extension ports to 16. These
ports are numbered as follows:
Mainboard (Built-in ESI)! Extension Ports 01
06
ESI(8)-B13 ETU (CN4)! Extension Ports 07
14
SLI(2)-B13 ETU (CN13)! Extension Ports 15
16
To install the SLI(2)-B13 ETU:
1. Ensure that the system is turned OFF.
2. Remove the cover from the KSU. 
						

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3. Carefully remove the ETU from its packaging, using a wrist strap connected to the
frame ground on the KSU to avoid static discharge.
4. Using a philips head screwdriver, secure the ETU to the KSU by tightening the screw
captive in the metal bracket on the ETU.
5. Run the SLI cabling from the ETU to the external MDF. A single twisted-pair is required
for each connection, this is not polarity sensitive. Crimp the special connector supplied
to each cable pair.
6. Replace the KSU cover.
7. Turn the system ON.
8. Program the system as required, although the additional ports are automatically
assigned default values.
Figure 2-25: SLI(2)-B13 ETU
COI(2)-B13 ETU
The COI ETU is an interface for two analogue Central Office Trunks (exchange lines) and
contains circuitry for ring detection, holding, dialling and control functions. Each Loop Start
trunk may be programmed as either DTMF or Decadic dialling. Two COI(2)-B13 ETUs can
be installed in the system, providing a total of 6 CO/PBX trunks. These ports are arranged
as follows:
Mainboard (Built-in COI)! Trunk Ports 01 to 02
COI(2)-B13 ETU (CN14)! Trunk Ports 03 to 04
COI(2)-B13 ETU (CN16)! Trunk Ports 05 to 06
To install the COI(2)-B13 ETU:
1. Ensure that the system is turned OFF.
2. Remove the cover from the KSU.
3. Carefully remove the ETU from its packaging, using a wrist strap connected to the
frame ground on the KSU to avoid static discharge.
4. Using a philips head screwdriver, secure the ETU to the KSU by tightening the screw
captive in the metal bracket on the ETU.
5. Run the COI cabling from the ETU to the external MDF. A single twisted-pair is required
for each connection, this is not polarity sensitive. Crimp the special connector supplied
to each cable pair.
6. Replace the KSU cover.
7. Turn the system ON. 
						

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Program the system as required, although the additional ports are automatically assigned
default values.
Figure 2-26: COI(2)-B13 ETU
CID(2)-B13 Unit
The CID Unit provides analogue COI trunks with incoming Caller ID indication. Three
CID(2)-B13 Units can be installed in the system, one on the mainboard and one on each of
the COI(2)-B13 ETUs, providing each of the 6 analogue COI trunks with Caller ID indication.
This arrangement is indicated as follows:
Mainboard (Built-in COI)!Trunk Ports 01 to 02
COI(2)-B13 ETU (CN14)!  Trunk Ports 03 to 04
COI(2)-B13 ETU (CN16)!  Trunk Ports 05 to 06
To install the CID(2)-B13 ETU:
1. Ensure that the system is turned OFF.
2. Remove the cover from the KSU.
3. Carefully remove the Unit from its packaging, using a wrist strap connected to the
frame ground on the KSU to avoid static discharge.
To install the COI Ports 1 to 2:
4. Locate connector CN18 (marked CID) on the mainboard, then position the CID Unit
over it making sure that the small hole in the CID Unit is aligned with the post on the
KSU. Press the unit down firmly to lock it into place and secure with the two screws
supplied using a philips head screwdriver.
Figure 2-27: Mounting the CID(2)-B13 Unit onto the Mainboard 
						

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To install for COI Ports 34 or 56:
1. If the COI(2)-B13 ETU is already installed, remove its screw using a philips head
screwdriver and then carefully remove the board from its slot.
2. Attach the three plastic stand-offs supplied to the CID Unit by pressing the large flanged
end into the hole in the CID Unit. Place these onto the side of the Unit where connector
CN1 is located.
3. Locate connector CN2 (marked CID) on the COI ETU, then position the CID Unit over it
making sure that the stand-offs on the CID Unit are aligned with the holes in the COI
ETU. Press the two boards together firmly to lock into place each standoff and the
mating connectors.
4. Reinstall the COI ETU into the KSU. (Refer to COI(2)-B13 ETU, Pg 41.)
Figure 2-28: Mounting the CID(2)-B13 Unit onto the COI(2)-B13 ETU
5. Replace the KSU cover.
6. Turn the system ON.
BRT(1)-B13 ETU
The BRT ETU provides an interface for one ETSI compliant, Point-to-Multipoint, Basic Rate
ISDN service. This digital service supplies two 64 kbps channels, which can each carry a
voice call. Therefore providing the system with two trunks. Two BRT(1)-B13 ETUs can be
installed in the system, providing a total of 6 CO/PBX trunks. These ports are arranged
as follows:
Mainboard (Built-in COI)!Trunk Ports 01 to 02
BRT(1)-B13 ETU (CN15)!Trunk Ports 03 to 04
BRT(1)-B13 ETU (CN17)!Trunk Ports 05 to 06
To install the BRT(1)-B13 ETU:
1. Ensure that the system is turned OFF.
2. Remove the cover from the KSU.
3. Carefully remove the ETU from its packaging, using a wrist strap connected tot he
frame ground on the KSU to avoid static discharge.
4. Locate connector CN15 or CN17 (marked BRT) on the mainboard and slide the ETU
between the posts. Press the ETU down firmly to lock into place.
5. Using a philips head screwdriver, secure the ETU to the KSU by tightening the screw
captive in the metal bracket on the ETU.
CID(2)-B13 UNITCOI(2)-B13 ETU 
						

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6. Run the BRT cable from the ETU to the external NT-1 (the interface box installed by the
ISDN service provider). A twin twisted-pair cable is required, terminated at each end
with an RY-45 plug in a 1-1 configuration. CAT-5 or similar cable is recommended.
(Refer to Figure 2-30:: BRT(1)-B13 ETU Connection Cable, Pg 44.)
7. Replace the KSU cover.
8. Turn the system ON.
9. Program the system as required, although the additional ports are automatically
assigned default values.
Figure 2-29: BRT(1)-B13 ETU
Figure 2-30: BRT(1)-B13 ETU Connection Cable
Optional ETUs
PBR-B13 ETU
The Push Button Receiver (PBR) ETU detects and translates DTMF dialling tones
generated by single line telephones, faxes, modems etc., connected to the system via the
SLI(2)-B13 ETU, APR-UA Unit or the FAX Port. One PBR-B13 ETU can be installed in the
system, providing 4 PBR circuits.
To Install the PBR-B13 ETU:
1. Ensure that the system is turned OFF.
2. Remove the cover from the KSU.
3. Carefully remove the ETU from its packaging, using a wrist strap connected tot he
frame ground on the KSU to avoid static discharge.
4. Attach the plastic stand-off (supplied) to the PBR ETU by pressing the large flanged
end into the hole in the lower left of the ETU. Place this onto the side of the ETU where
connector CN1 is located.
5. Locate connector CN9 (marked PBR) on the mainboard, then position the PBR ETU
over it making sure that the stand-off on the ETU and the post on the KSU are both
properly aligned. Press the ETU down firmly to lock into place the stand-off and the
mating connectors.
6. Secure the PBR ETU with the screw supplied using a philips head screwdriver.
7. Replace the KSU cover. 
						

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8. Turn the system ON.
Figure 2-31: PBR-B13 ETU
MIF-B13 ETU
The MIF-B13 ETU provides one RS-232 port and additional memory to support the PC
Programming and Station Message Detail Recording (SMDR) facilities. One PBR-B13 ETU
can be installed in the system.
To install the MIF-B13 ETU:
1. Ensure that the system is turned OFF.
2. Remove the cover from the KSU.
3. Remove the ground place (located at the bottom of the KSU) by removing its crew
located inside the KSU.
Figure 2-32: Removing the Ground Plate
4. Place the green grounding wire on top of the DB-9 plate (supplied) and tighten with the
original screw.
Figure 2-33: Mounting the DB-9 Plate
PBR-B13 ETU
Plastic Stand-off 
						

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5. Carefully remove the ETU from its packaging, using a wrist strap connected tot he
frame ground on the KSU to avoid static discharge.
6. Locate connector CN12 (marked MIF) on the mainboard and slide the ETU between
the posts. Press the ETU down firmly to lock into place.
7. Using a philips head screwdriver, secure the ETU to the KSU by tightening the screw
captive in the metal bracket on the ETU.
8. Plug the 8-way connector on the end of the DB-9 CABLE into CN2 on the MIF ETU.
Plug the mail DB-9 end of the serial cable connecting to your PC or Printer into this DB-
9 socket on the KSU.
Figure 2-34: Connecting the DB-9 Cable
9. Replace the KSU cover.
10. Turn the system ON.
11. Program the system as required.
RS-232C Interface Specifications:
Baud Rate: SMDR – 1200, 2400, 4800*, 9600 bps
PS Programming – 19200 bps (fixed)
Data Length: 8 bits
Stop Bits: 1*, 2 bits
Parity: None
Flow Control: XON/XOFF
(* = Default Setting)
RS-232C Cable Requirements:
Straight RS-232C serial cable terminated with male DB-9 connector at one end. The other
end of the cable will be terminated to suit the connected equipment (i.e. printer, PC, etc.).
Figure 2-35: MIF-B13 ETU