2. Specifications
2-23
2.4. Network
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Network Specifications
Shown below are EQ100 network specifications:
Item
Specifications
Interface
Ethernet
Ports
2
Connector
RJ-45
Type
CSMA/CD
Modulation
Baseband
Standards
10BASE-T/100BASE-TX
10BASE-T
100BASE-TX
Transmission Rate
10Mbps
100Mbps
Transmission Media
Twisted-pair cable (unshielded:
UTP):
Category 3, 4, 5, or 5e
Twisted-pair cable (shielded:
STP):
Category 3, 4, 5, or 5e, 100
Ω
Twisted-pair cable (unshielded:
UTP): Category 5 or 5e
Twisted-pair cable (shielded:
STP):
Category 5, or 5e, 100
Ω
Cascaded Stages (*) Up to 4 stages
Up to 2 stages
Transmission Distance
100 m
Others
Automatic crossover/straight cable identification
*: In case of a repeater hub
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LAN and Sub-LAN Connection Port
Differences of LAN and sub-LAN connection ports are shown below:
R: Recommended, Yes: Available, N/A: Not available
Specifications
LAN
Sub-LAN
Setting Item
Default Gateway
Yes
N/A
DNS
Yes
N/A
Connection
Device
Upper Level System (*1)
Yes
N/A
Computer (Web Browser)
Yes
Yes
Measurement Device (*2)
Yes
R
*1: Upper level systems include EQ server, EQ-Manager, mail (SMTP) server, SNTP server,
FTP server, and FTP client.
*2: It is recommended that a LAN-connected measurement device should be connected to the
sub-LAN connection port to configure a network dedicated to measurement devices. Shown
below are advantages to construct a dedicated measurement device network:
- Influence of high network load on measured data collecting can be avoided
- Influence of an instrument failure on other devices can be avoided
- Influence of power cut of a network device on measured data collecting can be avoided