APP APP-601, Руководство по эксплуатации, Страница: 58 / 146

Hardware 4-21
4.6 Ethernet Switch
The Ethernet switch allows flow of information between the Computer Control chassis, and the Data
chassis. The standard Ethernet switch, included with the recorder, is a five or eight port EISK series
unmanaged plug and play switch. The EISK switches are intended for commercial and industrial
applications. They have a wide temperature and operating range and comply with electromagnetic
compatibility and EFT/Surge standards.
The auto-negotiate protocol allows it to link with any compatible 10BASE-T or 100BASE-TX device. It
will allow function with any application layer that works with Ethernet, including Modbus/TCP or
Ethernet/IP. The switch has built-in broadcast storm control to prevent excess broadcasts from degrading
network performance.
To aid in troubleshooting, each port LED is lit solid if a valid link exists to an attached device, flashes to
show activity, and indicates data rate by color: green for 100Mbps and yellow for 10Mbps. A separate
green LED indicates the device is powered.
In most cases, power for the switch comes from a Data chassis or Computer Control chassis. Both Chassis
output 12VDC via the power supply circuit board terminal block. The 12VDC output is located on
terminals 3 & 4.
The following table lists the switch specifications.
Table 6: Switch Specifications
Specification Details
Input voltage 10-36VDC or 8-24VAC
Power 5 Watts
AC Input Frequency 47-63Hz
Operating Temperature 0 to 60º C
Relative Humidity 0 to 95% non-condensing
Data Rate 10/100 Mbps
Protection IP30
Signaling 10Base-T/100Base-TX
Port Connectors Shielded RJ-45