NEC Electra Elite 48/192 Features And Specifications Manual page 207

Issue 6
C - 88
The 10Base-2 technology limits cable length to 185 meters (607
¥
feet).
The following table lists specifications for the VDH2(8)-U10 ETU.
¥
VDH2(8)-U10 ETU Specifications
Description
Access Method
Transmission Speed
Transmission Interface
10Base-2
term
10Base-T + D Interface
Transmission Cable Type and Maximum Cable Length
10Base-2
term
10Base-T + D Interface
System Capacity (Electra Elite 192)
¥
Three VDH2(8)-U10 ETUs can be installed in each B64-U10 KSU.
Therefore, 24 VDD-U Units can be supported for each KSU, and 72
VDD-U Units can be supported per full system.
System Capacity (Electra Elite 48)
¥
Three VDH2(8)-U10 ETUs can be installed in the B48-U10 KSU.
Therefore, 24 VDD-U Units can be supported per system.
Power Failure
¥
When power fails, Coreline operates using KSU backup battery, and
operation time is limited to the battery capacity of the KSU.
CPU Reset
¥
LAN data is not affected by CPU reset.
LAN alert for Maintenance
¥
When the system is off, the VDH2(8)-U10 ETU is off, and the LAN is
disabled. The LAN must be notified when the KSU is off.
General Specifications
CSMA/CD Method (IEEE 802.3)
10 Mbps
10Base-2 (VDH2(8)-U10): 1 port
10Base-T + D
Transmission Interface Connectors
BNC (coaxial cable)
RJ45 (modular for 10Base-T)
Coaxial Cable – 606.8 feet (185 meters)
Twisted Pair Cable (LAN Category 3 or
higher) – 328 feet (100 meters) for
10Base-T technology.
Coreline (LAN/Station Cable Integration)
Electra Elite
Specifications
term
Interface: 8 ports