User`s manual

EM1500 User’s Manual www.rabbit.com 21
4. EM1500 SPECIFICS
This chapter describes the front and back panels of the EM1500 and in particular the pin-outs for the serial
ports and the jumpers for changing their default behavior.
4.1 Front Panel of EM1500
On the front panel are connectors for Ethernet, RS-485 and power. There is also a reset button, LEDs, and
a label containing the last six digits of the unit’s MAC address. The first six digits of the MAC address are:
00:90:C2. This information will be important later if you are configuring multiple units at a time or you
use directed ping to assign an IP address.
Figure 4.1 Front Panel of EM1500
.
Table 4.1 Front Panel Description
Connector Description of Use
RJ-45 Connects to 10/100Base-T Ethernet
1x3 IDC header Connects to RS485 half duplex serial port
Screw terminal Connects to 9-36V DC power adapter; snaps in and out for ease of use.
LEDs
There are 4 LEDs:
• PWR (red) - comes on steady when power successfully applied.
• ACT (yellow) - flashes when data traffic present.
• LINK (green) - comes on steady when Ethernet connection is made.
• USER (red and green, orange if both red and green on at the same
time) - shows overall status/run mode. See Table 4.2 for more
information.
RESET
POWER
9-36 VDC
ETHERNET
USER
+ GND -
+ -
ACT
PWR
LINK
MAC ID:
RJ-45
1x3 IDC
header
RS-485
Â