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Table 4 lists the pin assignments for the RJ-45 shielded Ethernet connector.
Table 4: Ethernet Connector Pin Assignments
Pin
Signal
1
Transmit Data +
2
Transmit Data -
3
Receive Data +
4
*
5
*
6
Receive Data -
7
*
8
*
* These pins are usually connected in a standard Ethernet CAT 5 cable. There is special
termination for these signals in the interface to eliminate any problems if they are connected.
2.3 Electrical
The ESP-2 MI has two electrical power connectors on the front of the unit. These
connectors are labeled POWER 9-30 VDC 4W. You may use either one of these
connectors, but not both.
•
The unit ships with an external power adaptor. This adaptor includes a barrel
plug that is inserted into the leftmost power connector on the unit's front panel.
•
The unit also contains a 3-pin screw terminal block connector which provides
connection for a 9-30 VDC power source. The locations of the positive, ground
and negative pins are screened on the front panel.
Surge protection is provided for each serial port up to 15,000 volts electrostatic
discharge (ESD).
2.4 Technical Specifications
Table 5 lists the ESP-2 MI serial hub technical specifications.
Table 5: Operating Specifications
Specification
Dimensions
Temperature
Humidity
Power
Equinox ESP-2 MI Serial Hub Installation and User Guide
Operating Range
4.75"W x 4.38"D x 1.62"H
o
o
o
0
to 50
C (32
to 122
10 to 90% non-condensing
9 to 30 VDC at less than 4W
o
F)
5
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