B&B Electronics ESR901, ESR902, ESR904 - page 11

Introduction
Manual Documentation Number ESR90x-0508m Chapter 1 1
B&B Electronics Mfg Co Inc – 707 Dayton Rd - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104 – www.bb-elec.com
B&B Electronics Ltd – Westlink Commercial Park – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445 – www.bb-europe.com
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Ch ha ap pt te er r 1 1: : I IN NT TR RO OD DU UC CT TI IO ON N
VLINX ESR90x Industrial Ethernet Serial Servers allow connection of RS-
232, RS-422 or RS-485 devices to an Ethernet network. The serial ports can
be accessed over a LAN/WAN using Direct IP Mode, Virtual COM Port, or
Paired Mode connections. The 10/100 Mbps Ethernet connection auto-
selects 10BaseT or 100BaseTX and indicates the type of connection with a
bi-color link light. ESR90x serial servers are built for use in industrial
environments, featuring an IP30, approved slim line DIN rail mountable
case. They operate from a range of AC or DC power supply voltages, support
redundant DC power and feature terminal block power connectors.
Figure 1. VLINX ESR90x Ethernet Serial Servers
Features
• Multi-interface serial ports
o The ESR901 features one multi-interface serial port and the
choice of standard DB-9M or removable terminal block
connections (switch selectable)
o The ESR902 features two multi-interface serial ports
o The ESR904 features four multi-interface serial ports