User's Guide

emerald Quick Installation Guide
3
1.1.3 Terminal dimensions
Figure 2 Illustration of emerald including dimensions
Dimensions of the emerald terminal:
Length: 157mm (6.2”) Width: 109mm (4.3”)
Depth (bottom): 49mm (1.9”) Depth (top): 28mm (1.1”)
1.1.4 Part ratings
emerald has been tested for operation within the ranges specified in the table below.
Part Rating
emerald terminal 0º to 49ºC (32º to 120ºF) flame retardant polycarbonate,
Humidity 5% to 95% non-condensing
DC power (unit only) 12V nominal (11.75V – 12.25V) @ 500mA peak. Shall be powered by an
external UL294 or UL603 listed power-limited power supply with
appropriate ratings and external power on indicator.
Inputs Four supervised analog inputs - voltage supplied
Comms to system host 10/100 Base-T, TCP/IP, CAT5/5e/6, RJ45 connector
Dry contact relay outputs
0 - 30VDC @ 2A each
a
a. When powered from an external source, the current per load is limited to 2A by the relay, but
the total current drawn is also limited by the capability of the external power supply.
Wet contact relay outputs
12VDC @ 1.3A combined between both outputs
b
b. If the power to drive the relay loads are sourced from the internal supply, the total current
required from the external supply is Relay 1 LOAD + Relay 2 LOAD + 0.5A.
Ethernet communications 10/100BaseT Ethernet - RJ-45 connector
Memory 128MB RAM, 256MB NAND Flash supporting up to 250,000 cardholder
records and 50,000 transactions off-line)
Table 3: Table of part ratings