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Issue 6
5 - 90
5.9.4
Installing the VDH2(8)-U( )
Three ETUs can be installed in slots S2~S7.
The 10Base-T ports on the VDH2(8)-U( ) ETU use
4-wire polar cables.
When connecting a VDH2(8)-U( ) ETU to a multiline
terminal, do not use under-carpet cables because the
device becomes susceptible to outside noises. It is
better to use EIA/TIA round cables instead of flat
cables. When under-carpet cables are used, you
must follow the installation instructions provided by
the
cable
precautions:
•
Limit the under-carpet cable length to 65 feet.
•
When using multiple pair cabling to connect the
VDH2(8)-U( ) units to the multiline terminal, do
not include analog lines in the same cable.
When connecting a VDH2(8)-U( ) ETU, lead the cable
connected to the ETU out through the clamp on the
bottom right of the KSU.
Figure 5-50 10Base-T Cable Connections
cable connections to the LAN using 10Base-T
cabling. Use an EIA/TIA category 3 (or higher)
unshielded twisted pair cable. Do not use 10Base-T
cable for overhead wiring or for outdoor wiring.
5.9.5
Switch Settings and Jumpers
Refer to
Table 5-42 VDH2(8)-U( ) ETU Default Switch
Settings
and
Table 5-43 Jumper
Table 5-42 VDH2(8)-U( ) ETU Default Switch Settings
Switch
SW1
N/A
SW2
X Port 8 Normal Use Mode
(LAN Cable Integration)
Port 8 10Base-T
=
cascades to another
VDH2(8)-U( ) ETU or
HUB
manufacturer.
Also
Settings.
Setting
Reset Switch
Defines Port 8
communication mode.
Installing Electronic Telephone Units
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