Hardened Serial Device Server

Industrial RS-232/422/485 Serial Device Servers feature two independent Ethernet ports and MAC addresses to provide a redundant network mechanism that guarantees Ethernet network reliability. It is designed to connect RS-232/422/485 serial devices such as PLC, meters, sensors, and barcode readers to an IP-based Ethernet LAN.

They allow nearly any device with serial ports to connect and share an Ethernet network, while also providing various operations such as COM port redirection (Virtual COMport), TCP server, TCP client, and UDP mode. With COM port redirection mode, standard serial operation calls are transparently redirected to the servers, guaranteeing compatibility with legacy serial devices and enabling backward-compatibility with existing software. With TCP server, TCP client, and UDP modes, it ensures compatibility in network software using a standard network API. Moreover, serial devices can be made communicate with other devices via peer-to-peer, thus eliminating the need for an intermediate host PC and software programming.

Approvals —
Operating Humidity— 5 to 95% non-condensing
Configuration Options— Windows utility, Telnet console, Web Browser
Connectors— Ethernet Port Connector: 8-pin RJ45
Management— SNMP MIB-II
Operating Systems Supported— Driver Support 32-bit/64-bit Windows OS, Windows Server, and Linux
Operating Temperature— -40 to +158° F (-40 to 70° C)
Operation—
COM port redirection mode (Virtual COM);
TCP/UDP server (polling) mode;
TCP/UDP client (event handling) mode;
Pair connection (peer to peer) mode
Power—
Consumption: 5.2W;
Input: 12 ~ 48VDC, Redundant Dual Inputs
Serial Baud Rate— 50 bps ~ 921.6 kbps, any baud rate setting
Serial Data Bits— 5, 6, 7, 8
Serial Data Parity— None, Odd, Even, Space, Mark
Serial Flow Control— XON/XOFF, RTS/CTS, DTR/DSR
Serial Protection— Built-in 15 KV ESD for all signals, 2KV Isolation for RS-422/485 signals
Serial Stop Bits— 1, 1.5, 2
Speed— Ethernet: 10/100 Mbps
Standards— Ethernet Compatibility: IEEE 802.3, IEEE 802.3u
Storage temperature— -40 to 185 °F (-40 to 85 °C)

LES421A-R2—
Connectors— Serial: (1) DB9 (Male); Ethernet: (2) RJ45; Power: (1) 2-Position Pluggable Terminal Block
Dimensions— 1.44-in. H x 5.51-in. W x 3.74-in. D (36.6 x 140 x 95-mm)
Indicators—
System LED: Power 1, Power 2, Status;
Port LED LAN: Speed, Link/Active;
Serial: TX, RX
Weight— 0.952-lb. (0.432-kg)

LES422A-R2—
Connectors— Serial: (2) DB9 (Male); Ethernet: (2) RJ45; Power: (1) 2-Position Pluggable Terminal Block
Dimensions— 1.44-in. H x 5.51-in. W x 3.74-in. D (36.6 x 140 x 95-mm)
Indicators—
System LED: Power 1, Power 2, Status;
Port LED LAN: Speed, Link/Active;
Serial: TX, RX
Weight— 0.952-lb. (0.432-kg)