Section 2 - Hardware; Physical Interfaces - Equinox Systems ESP-2 MI Installation And User Manual

Section 2 - Hardware

All connectors, LEDs and buttons are on the front of the ESP-2 serial hub, as shown
in Figure 1.
Figure 1: ESP-2 MI Serial Hub
The lower left corner of the front panel contains two electrical connectors. You may
use one of these, but not both. For more information, see Electrical on page 5.
The Ethernet port supports 10/100 auto detect (speed and duplex) connections. The
LAN connector accepts 10BaseT or 100BaseT LAN interface cable. A CAT 5 cable
is required for 100BaseT operation. Table 4 on page 5 lists the pin assignments.
The PORTS 1 and 2 connectors are standard DB-9 DTE ports in RS-232 mode.
Table 3 on page 4 lists the pin assignments for each interface. The unit ships with RS-
232 mode enabled for both ports.
Table 2 describes the LEDs and buttons on the front panel.
Table 2: LEDs and Buttons
Item Description
POWER The POWER LED is lit when the hub is connected to a power source.
The ON LINE LED is lit (not blinking) when the hub's self-test and
ON LINE
initialization procedures have completed successfully.
The 10 LED is lit when the hub is connected to a 10 Mbps LAN, and the 100
10
LED blinks when traffic is present.
The 100 LED is lit when the hub is connected to a 100 Mbps LAN, and the 10
100
LED blinks when traffic is present.
Pushing the RESET button reboots the hub; see Reinitializing and Resetting
RESET
the Hub on page 9.
Pushing and holding the INIT button restores the hub to factory defaults; see
INIT
Reinitializing and Resetting the Hub on page 9.

2.1 Physical Interfaces

Each port supports the standard RS-232 DTE serial signals via a male DB-9
connector, with the exception of RI.
Equinox ESP-2 MI Serial Hub Installation and User Guide 3