NEC Electra Elite 192, Hardware Manual

Page: 221 / 369

Electra Elite Issue 6
System Hardware Manual 5 - 75
5.8 VDH2(8)-U10 ETU
5.8.1 Description
The VDH2(8)-U10 ETU integrates both LAN and station
cabling. This is a standard ESI ETU with additional
circuitry for the LAN integration function.
Key Telephones and Attendant Consoles can be
connected to the VDH2(8)-U10 ETU using a VDD-U Unit.
Each VDH2(8)-U10 ETU has a built-in HUB facility that
has eight ports (IEEE 802.3 10Base-T).
A VDD-U10 adapter is required at each digital station or
Attendant Console. Refer to Installing a VDD-U Unit on a
Multiline Terminal in
Chapter 7 Installing Optional
Equipment .
5.8.2 Specifications
Refer to Table 5-21 VDH2(8)-U10 ETU Specifications .
Table 5-21 VDH2(8)-U10 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-T + D
term
Interface: 8 ports
Transmission Interface Connectors
10Base-2 BNC (coaxial cable)
10Base-T + Dterm Interface RJ-45 (modular for 10Base-T)
Transmission Cable Type and Maximum Cable Length
10Base-2 Coaxial Cable – 606.8 feet (185 meters)
10Base-T + D
term
Interface
Twisted Pair Cable (LAN Category 3 or
higher) – 328 feet (100 meters) for
10Base-T technology
.