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Introduction
2.7 Technical Specifications
Table 3 - Technical Specs
The transceiver used in the NET485 is intended for balanced data transmission and complies with both EIA
Standards RS-485 and RS-422. It contains a differential line driver and a differential line receiver, and is
suitable for half-duplex transfer. The input impedance is 19KOhm allowing up to 50 transceivers to be
connected on the bus.
Category Description
CPU
DSTni-EX 186 CPU, 256 KB zero wait state SRAM
2048KB Flash, 16KB Boot ROM, 1024KB SRAM
Firmware Upgradeable via TFTP
Reset Circuit Reset In is low active. (Software reset only)
Serial Interface RS422/485. Baudrate software selectable (300 to 921600)
Serial Line Formats 7 or 8 data bits, 1-2 Stop bits, Parity: odd, even, none
Network Interface RJ45 Ethernet 10Base-T or 100Base-TX (Auto-sensing)
Compatibility Ethernet: Version 2.0/IEEE 802.3
Protocols Supported ARP, UDP, TCP, Telnet, ICMP, SNMP, DHCP, BOOTP, TFTP, Auto IP, SMTP, and
HTTP
Power Input
8VDC to 24VDC, approximately 200ma.
LEDs 10Base-T & 100Base-TX Activity, Full/half duplex.
Management Internal web server, SNMP (read only) Serial login, Telnet login
Security Password protection, Locking features, optional Rijndael 128-bit encryption
Internal Web Server Serves static web pages and Java applets
Weight 1.7oz
Material Case: Flame Retardant
Temperature Operating range: -40°C to +85°C (-40°F to 185°F) High performance mode has an
upper temperature limit of 75°C.
Relative Humidity Operating: 5% to 95% non-condensing
Warranty 1-year limited warranty
Included Software Windows™ 98/NT/2000/XP based Device Installer configuration software, Windows™
based Comm Port Redirector.
EMI Compliance
Radiated & conducted emissions - complies with Class B limits of EN 55022:1998
Direct & Indirect ESD - complies with EN55024:1998
RF Electromagnetic Field Immunity - complies with EN55024:1998
Electrical Fast Transient/Burst Immunity - complies with EN55024:1998
Power Frequency Magnetic Field Immunity - complies with EN55024:1998
RF Common Mode Conducted Susceptibility - complies with EN55024:1998
2-6 NET485 User Guide