Hardware Overview
A7810 Features and Specifications
Processor Arm9 embedded CPU
Operating System Linux 2.6
Memory 32 MB ram, 16 MB flash
LED Ethernet, Pulse (x4), power, alarm
Console 2 x 16 character LCD, two pushbuttons
LAN RJ45 10/100 Ethernet, full half duplex, auto polarity
Protocols Modbus/TCP, TCP/IP, PPP, HTTP/HTML, FTP, NTP, XML, SNMP-Trap
Power Supply
1
24VDC, 500mA, Required (not included) The unit is to be sourced by a Class 2 power supply with
the following output: 24Vdc, 500 mA minimum but not to exceed 8A.
Note: only 350mA is required if the USB port is not used.
Interval Recording User selectable 1-60 minutes. Default 15 minute interval
Inputs
2
4 pulse inputs, dry contact.
Monitor consumption, rate
Pulse rate/width user selectable to 10hz, 50hz or 100hz.
Pulse rate option: 10hz, minimum pulse width 50ms
Pulse rate option: 50hz, minimum pulse width 10ms
Pulse rate option: 100hz, minimum pulse width 5ms
Contact closure threshold 100Ω to 2.5kΩ user selectable
Pulse count values are stored in non-volatile memory.
Isolation
2
: The RJ45 Ethernet is isolated to 1500VDC from the main board.
Power input, Pulse inputs, and USB port and are non-isolated.
Environmental Pollution Degree 2, Altitude up to 2000M.
For indoor and outdoor use when used in an appropriate enclosure.
The A7810 must be mounted inside a NEMA rated electrical enclosure for safety and isolation
requirements.
North America: Indoor, temperature -30º - +70ºc, 0 - 95% humidity, non-condensing.
4
Safety UL61010 Recognized, File: E320540 (Model A7810)
EMC FCC CFR 47 Part 15, Class A
EN 61000, EN 61326
Size 4” x 4.25” x 2” (102mm x 108mm x 51mm)
Mass 0.42 lbs (0.19 kg)
1
inputs are intended for low voltage
class 2 outputs.
2
if the product is used in a manner not
specified by the manufacture, the
protection provided by the equipment
may be impaired.
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