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...

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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...

Installation Manual  •  •  •  KSU Installation Page  39A6-506000-642-01
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...

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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...

Installation Manual  •  •  •  KSU Installation Page  41A6-506000-642-01
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...

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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...

Installation Manual  •  •  •  KSU Installation Page  43A6-506000-642-01
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,...

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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...

Installation Manual  •  •  •  KSU Installation Page  45A6-506000-642-01
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...

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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...