NEC Xen Alpha Installation Manual

							Installation Manual  •  •  •  Installing DTU Type Multiline MonitorsPage 69A6-506000-642-01
Figure 4-9: Installing Plastic Panel
Plastic Panel Removal
Lift the right corner, raise the panel and slide the bottom away from the Multiline Terminal.
NEVER pull on the bottom of the plastic panel to remove it. Damage to 
the plastic panel could result
Figure 4-10: Removing the Plastic Panel from the Multiline Terminal 
						

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SECTION 6
REMOVING
SOFTKEYS
If softkeys are not going to be used on the Multiline Terminal they can be removed. This
section describes the process for removing the keys.
1. Remove the softkeys by pulling the softkey plate upward as shown in Figure 4-11::
Removing Softkeys, Pg 70..
Figure 4-11: Removing Softkeys
2. Install the plastic panel again.
SECTION 7
ADJUSTING THE
HEIGHT OF THE
MULTILINE
TERMINAL
The base plate on DTU-type Multiline Terminals are hinged. The bottom portion can be
adjusted up or down to raise or lower the height of the terminal.
1. Turn the Multiline Terminal upside down and locate the tabs as shown in Figure 4-12::
Locating the Adjustment Tabs on the Multiline Terminal, Pg 70.
Figure 4-12: Locating the Adjustment Tabs on the Multiline Terminal 
						

							Installation Manual  •  •  •  Installing DTU Type Multiline MonitorsPage 71A6-506000-642-01
2. Push the adjustment tabs and raise the base plate until it locks.
Figure 4-13: Raising the Base Plate on the Multiline Terminal
3. The length of the cord can be adjusted by pulling the line cord though the groove in the
bottom of the Multiline Terminal.
Figure 4-14: Adjusting the Line Cord Length
4. To lower the base plate on the Multiline Terminal, push on the adjustment tabs and push
the base plate downward.
Figure 4-15: Lowering the Base Plate on the Multiline Terminal 
						

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SECTION 8
WALL MOUNTINGAny DTU-Type Multiline Terminal can be mounted on a wall. Multiline Terminals can be wall
mounted by using the base unit that comes with the Multiline Terminal or by using the WMU-
UA Unit to accommodate adapters that are installed on the Multiline Terminal. 
Removing and Remounting the Handset Hanger
1. Remove the hanger by sliding it out of the slot. 
2. Install it back in its original position so that the hanger protrudes providing a rest for the
handset. (This procedure applies when using either the base unit or the WMU-UA Unit.)
Refer to Figure 4-16:: Positioning the Handset Hanger, Pg 72 for the steps for removing
and remounting the handset hanger. 
Figure 4-16: Positioning the Handset Hanger
Wall Mounting, Using the Base Unit
1. Refer to Section 9: Preparing Multiline Terminal for Adapter Installation, Pg 78, and
perform Steps 1 – 5.
2. Press both sides of the base cover and turn it left to remove it.
3. Rotate base cover 180° and install it again on the Multiline Terminal.
4. Remove the shaded base plate knockout shown on Figure 4-17:: Removing the
Knockout, Pg 72 
Figure 4-17: Removing the Knockout
#$ 
						

							Installation Manual  •  •  •  Installing DTU Type Multiline MonitorsPage 73A6-506000-642-01
5. Assemble the base plate and base cover.
6. As illustrated in Figure 4-18:: Attaching the Base Plate to the Wall, Pg 73, attach the
base plate and base cover assembly (wide end down) to the posts on the locally
provided and installed wall plate. Place locally provided screws in the nodes on the
base plate and secure the assembly to the wall.
Figure 4-18: Attaching the Base Plate to the Wall
If using a modular jack instead of a wall plate, put the modular jack inside the base unit
as shown in Figure 4-19:: Wall Mounting using a Modular Jack, Pg 73. Use the locally
provided screws to attach the base unit directly to the wall.
Figure 4-19: Wall Mounting using a Modular Jack
7. Plug the line cord into the jack on the wall plate, wrap the extra cord and secure it with a
tie wrap, and lead the line cord out through the groove in the side of the base unit. 
Figure 4-20: Plugging in the Line Cord using a Wall Jack
Nodes
Nodes
Posts
Modular
Te r m i n a l 
						

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If using a modular jack instead of a wall plate, plug the line cord into the modular jack,
wrap the extra cord and secure it with a tie wrap, and lead the line cord out through the
groove in the side of the base unit.
Figure 4-21: Plugging in the Line Cord Using a Modular Jack
8. With the base plate and base cover assembly attached to the wall, hook the two bottom
tabs on the base cover into the tab slots on the base of the Multiline Terminal.
Figure 4-22: Attaching the Bottom Tabs of the Multiline Terminal to the Base Cover
9. Push up on the Multiline Terminal and lock the top tabs on the base cover into the tab
slots on the base of the Multiline Terminal. Turn terminal slightly clockwise to interface
with base cover. Figure 4-23:: Attaching the Top Tabs of the Multiline Terminal to the
Base Plate, Pg 74 shows how the Multiline Terminal is attached.
Figure 4-23: Attaching the Top Tabs of the Multiline Terminal to the Base Plate
Base Unit
Wall
Ta b
Tab SlotsLine Cord Multiline
Te r m i n a l
Ta b  S l o t s
Ta b s
WallMultiline
Te r m i n a l
Line Cord
Wall Mount
Unit 
						

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10. When properly installed, the wall-mounted Multiline Terminal looks similar to the one
shown in Figure 4-24:: Installed Wall Mount Unit, Pg 75.
NOTE:Do not adjust the tilt panel LCD after the Multiline Terminal is mounted on 
the wall. 
.
Figure 4-24: Installed Wall Mount Unit
Installing the Wall Mount Unit & Mounting the Multiline Terminal Using the
WMU-UA Unit
If installing an HFU-UA Unit, CTA-UA Unit, or APR-UA Unit, a separate WMU-UA Unit must
be purchased to accommodate these units.
1. Remove the line cord, base plate and base cover from the Multiline Terminal as shown
in the previous section.
2. Cut off the tabs on the adapter as shown in Figure 4-25:: Removing the Tabs from the
Adapter, Pg 75.
Figure 4-25: Removing the Tabs from the Adapter 
						

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3. Remove the tabs from the WMU-UA Unit as shown in Figure 4-26:: Removing the Tabs
from the WMU-UA Unit, Pg 76. (Tabs removed depends on the Multiline Terminal type.) 
Figure 4-26: Removing the Tabs from the WMU-UA Unit
4. Bundle the cord from the modular jack leaving about eight inches. Use a tie wrap to
secure the bundled cord.
5. Place the bundled line cord in the space between the WMU-UA Unit and the wall. Lead
the line cord out through the slits as shown in Figure 4-27:: Leading the Line Cord out
of the WMU-UA Unit, Pg 76.
Figure 4-27: Leading the Line Cord out of the WMU-UA Unit
Cut
Cut
Cut
DTU-8-1A (WH) TEL
DTU-8D-1A (WH) TEL
DTU-16D-1A (WH) TELDTU-32D-1A (WH) TEL
Cut
Cut 
						

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6. Attach the WMU-UA Unit to the posts on the wall plate (locally provided). Place locally
provided screws in the nodes on the WMU-UA Unit and secure the WMU-UA Unit to
the wall.
Figure 4-28: Attaching the Wall Mount Unit to the Wall
7. Connect the line cord to the Multiline Terminal.
8. With the WMU-UA Unit attached to the wall, hook the two bottom tabs on the WMU-UA
Mount Unit into the tab slots on the Multiline Terminal. Then push the two top tabs on
the WMU-UA Unit into the tab slots on the Multiline Terminal. If the adapter has a power
supply, lead the AC adapter cord out through the opening at the bottom of the Multiline
Terminal. Refer to Figure 4-29:: Attaching the Multiline Terminal to the WMU-UA Unit,
Pg 77.
Figure 4-29: Attaching the Multiline Terminal to the WMU-UA Unit
Nodes Nodes
Posts
WMU-UA Unit
Wall
Tab Stops Multiline Terminal
Adapter 
						

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Removing the Multiline Terminal from the Base Cover
To remove the Multiline Terminal from the base cover, lift the Multiline Terminal to disengage
top tabs, turn it slightly counter clockwise to unlock lower tabs on base cover, and remove it.
Figure 4-30: Removing the Multiline Terminal from the Base Cover
Removing the Multiline Terminal from the WMU-UA Unit
To remove the Multiline Terminal from the WMU-UA Unit, lift the Multiline Terminal to
disengage top tabs and lower the terminal from the WMU-UA Unit.
SECTION 9
INSTALLING
OPTIONAL
ADAPTERS
Optional equipment is available to enhance the Xen system. This equipment can be
purchased separately from the system and added as the customer business needs grow. All
these adapters can be installed on the DTU-Type Xen Multiline Terminals.
A Multiline Terminal can have up to three adapters installed at the same time. If attaching an
APR-UA Unit, a CTA-UA Unit, or an HFU-UA Unit, an external power supply is required.
Only one power supply is needed even if more than one adapter is installed.
When an adapter is installed for the first time into a telephone, the base cover on the
Multiline Terminal may have to be modified. The base cover has two access panels that are
removed before the cover can be closed over the adapters to complete the installation.
Preparing Multiline Terminal for Adapter Installation
To prepare the Multiline Terminal for adapter installation:
1. Unplug the telephone cord from the terminal.
2. Turn the terminal upside down. Push the tabs indicated in Figure 4-31:: Raising the
Base Plate, Pg 78, and raise the inner area of the base plate.
Figure 4-31: Raising the Base Plate