NEC Australia Pty Ltd Xen Master & Xen Axis
5 - 154 Installing Electronic Telephone Units
A6-324000-642-01 – Release 4.0
May 2001
5.3.2 Specifications
Refer to Table 5-8 VDH2(8)-U13 ETU Specifications.
5.3.3 Cabling
The information listed below applies when connecting the
VDH2(8)-U13 unit.
✆ Normally the 10Base-2 cables connected to the
VDH2(8)-U13 units cannot be directly connected to
another HUB or to a LAN terminal. A set of jumpers is
provided on the VDH2(8)-U13 to turn off the station
abilities for ports 1~7. In this case LAN terminals can
be connected directly to the VDH2(8)-U13 ETU.
Refer to Figure 5-29 VDH2(8)-U13 ETU Connections
for the layout of jumpers on the KTU.
✆ Port 8 is unique in that the station abilities cannot be
separated by changing a jumper setting like ports
1~7. Port 8 is to be used for cascading HUBs.
Connect Port 8 either to another VDH2(8)-U13 (Port
1~7) or an external HUB. In this case be sure to set
SW2 on the VDH2(8)-U13 to ‘=’. If SW2 is set to ‘X’,
then Port 8 is used as a regular Telamux connection.
See Figure 5-28 VDH2(8)-U13 ETU.
Table 5-8 VDH2(8)-U13 ETU Specifications
Description Specifications
General Specifications
Access Method CSMA/CD Method (IEEE 802.3)
Transmission Speed 10 Mbps
Transmission Interface
10Base-2:1 port
10Base-2 + D
term
Interface:8 ports
Transmission Interface Connectors
10Base-2 BNC (coaxial cable)
10Base-2 + Dterm Interface RJ45 (modular for 10Base-2)
Transmission Cable Type and Maximum Cable Length
10Base-2 Coaxial Cable – 185 metres
10Base-2 + D
term
Interface
Twisted Pair Cable (LAN Category 3 or higher) – 100
metres for
10Base-2 technology
.
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