User`s guide

SmartTouch Master User’s Guide
Agency Approvals
The REM is designed to meet the requirements of the following agencies:
UL
UL114 Office Appliances and Business Equipment. UL746.51
FCC
Requirements for FCC Conducted Emissions and Radiated Emissions for a
Class A device.
TNET Communications
The master/satellite communication network (TNET) uses RS485 Synchronous Data
Link Communication (SDLC) at 345k baud. A transformer provides isolation with no DC
connection between the scales. A four-conductor modular connector telephone cable is
used to connect each scale to the network. The maximum recommended data cable
length is 1500 feet (457 meters), including the 25-ft scale drops. The ends of the main
data cable must be terminated using a 113-ohm resistor (P/N 12839300A provided
with each master) to provide impedance matching. The master can be located at any
point on the network. However, when nearing the maximum cable length of 1500 feet,
the master should reside near the middle.
Ethernet
Communications
The Ethernet communications use standard TCP/IP protocol over a standard Ethernet
network at 10 Mbps.
Operating/Storage
Temperature
Operating Range: 10ºC to 40ºC (50ºF to 104ºF), humidity from 5% to 95% non-
condensing.
Storage Range: 0ºC to 70ºC (32ºF to 158ºF), with humidity from 5% to 95% non-
condensing.
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