Features & Specifications

Ethernet to 4-Port RS-232, RS-422, RS-485 Serial Server

Part: 4403 | Model: SeaLINK+4.ULTRA

Features

• Ethernet 10/100BaseT (autosense)

• Each port individually configurable for RS-232, 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

• Built-in watchdog/reset circuit automatically recovers the converter

from unexpected error-states

• 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

Specifications

Family

SeaLINK

Dimensions

8.6 (L) x 6.1 (W) x 2.0 (H)

Electrical Interface

RS-232, RS-422, RS-485

Humidity Range

10 – 90% Relative Humidity, Non-

Condensing

Host Interface(s)

Ethernet

Max Data Distance

4000 feet

Max Data Rate

230.4K bps

Operating Temperature

0°C to 70°C (32°F to 158°F)

# of Ports

4

Power Requirement

+5V @ 1A

Serial Connector(s)

DB9M

Storage Temperature

-50°C to 105°C (-58°F to 221°F)

sealevel.com

+1 864.843.4343

SL9417 E22