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Ethernet to 4-Port RS-422, RS-485 Serial Server Kit (4402-TB4) - DB9 Serial Interfaces
Ethernet to 4-Port RS-422, RS-485 Serial Server Kit (4402-TB4) - DB9 Serial Interfaces

Part# 4402-TB4

(SeaLINK+4.422 Kit)

Ethernet to 4-Port RS-422, RS-485 Serial Server Kit


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$569.00


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The 4402-TB4 kit includes four TB34 terminal blocks that simplify RS-422 and RS-485 field wiring. Each terminal block adapter includes a DB9 female connector and five screw terminals.

Sealevel's 4402 Ethernet to serial server is the easiest way to connect RS-422 or RS-485 serial devices to your Ethernet network. SeaLINK® products use industry standard RFC 2217 TCP/IP protocol for maximizing compatibility with the widest range of applications and devices.

Sealevel's SeaLINK software drivers and utilities make installation and operation easy using Microsoft Windows operating systems. After software installation, the 4402's serial ports appear as virtual COM ports to the host machine. Standard serial operating calls are transparently redirected to the 4402, guaranteeing compatibility with legacy serial devices and enabling backward compatibility with existing software. Serial tunneling is also supported, allowing two native serial devices to communicate over a network. Alternatively, raw data socket mode is supported, eliminating the need for a driver.

To simplify installation and configuration, a printed copy of the SeaLINK QuickStart Guide is included with all Ethernet serial server orders.
Host Interface(s) Ethernet
# of Ports 4
Brand/Family SeaLINK
Electrical Interface RS-422, RS-485
Serial Connector(s) DB9M
Max Data Rate 230.4K bps
Max Data Distance 4000 feet
Operating Temperature 0 - +70C
Storage Temperature -50 - +105C
Humidity Range 10 - 90% Relative Humidity, Non-Condensing
Power Requirement +5V @ 1A
Dimensions 8.6 (L) x 6.1 (W) x 2.0 (H)
  • • Ethernet 10/100BaseT (autosense)
  • • Each port individually configurable for RS-422 or RS-485
  • • Automatic RS-485 enable/disable
  • • Appears as a virtual COM port to host machine
  • • Data rates to 230.4K bps
  • • Supports custom baud rates and 9-bit protocol
  • • Hot-swappable
  • • Built-in watchdog/reset circuit for fault tolerance
  • • Four DB9M connectors
  • • DIN rail mounting option (Item # DR103)
  • • Includes 120V AC adapter that outputs 5VDC @ 2.4A (Item# TR101)
  • • Includes 7' Ethernet patch cable (Item# CA246) and 7' Ethernet crossover cable (Item# CA251)
  • • Sealevel SeaLINK software supports Microsoft Windows and Linux operating systems
  • • Kit includes four TB34 terminal block adapters






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