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UAC-CB-01RS2 Unitronics UniStream CB Com 1xRS232
MPN: UAC-CB-01RS2
Alt. SKU: UACCB01RS2
Special Price
£42.84
£35.70
Regular Price
£50.40
Why Choose the Unitronics UACâCBâ01RS2 UniâCOMâ¢â¯CB RSâ232 Module?
The Unitronics UACâCBâ01RS2 is a DINârailâmounted communication expansion module that seamlessly integrates with UniStream⢠Builtâin controllers via the UniâCOM⢠CB port. It provides a galvanically isolated RSâ232 serial interfaceâideal for connecting Modbus RTU devices or legacy serial equipment using a proper industrialâgrade port.
Technical Specifications
- Model: UACâCBâ01RS2 â UniâCOMâ¢â¯CB RSâ232 module
- Port: Single isolated RSâ232 DâSub 9âpin (male); ±20â¯VDC receiver tolerance relative to signal ground
- Baud rate range: 1,200â¯ââ¯115,200â¯bps
- Isolation: 500â¯VAC between port and I/O bus for 1 minute
- Cable type: Shielded RSâ232 cable
- Max cable length: 15â¯m (50â¯ft)
- Bus current draw: ~160â¯mA from the IO/COM bus
- Ingress protection: IP20 / NEMAâ¯1
- Operating temperature: â20â¯Â°C to +55â¯Â°C; storage â30â¯Â°C to +70â¯Â°C; 5â95â¯% RH (nonâcondensing)
- Shock & vibration: IEC 60068â2â27 (15â¯g, 11â¯ms) and IEC 60068â2â6 tests passed
- Weight: ~100â¯g; compact DINârailâmountable enclosure
Typical Applications
- Enabling RSâ232 communication for UniStream controllers with serial-only devices such as scales, barâcode readers, legacy PLCs or printers
- Reliable industrial serial interface without needing a USBâtoâRSâ232 converter
- Robust isolated RSâ232 port for Modbus RTU or ASCII communication in noisy electrical environments
Installation & Wiring Notes
- Ensure the UniStream controller is powered down before installing or removing modules.
- Snap the module onto the UniâCOM⢠CB COM port located on the side of compatible UniStream units.
- Use shielded serial cable; connect the shield only at the Functional Ground terminal (pin 5).
- Follow pinâout: Pin 2 = RXD input, Pin 3 = TXD output, Pin 5 = Signal Ground (SG). Pins 6 and 7 are internally connected and unused by software.
- Install modules in environments free of conductive dust, excessive vibration or moisture; leave unused CB jacks covered to avoid ESD ingress.
Frequently Asked Questions
- Which controllers support this module?
- What maximum length of cable is allowed?
- Does the module draw power from the controller bus?
- Why not use a USBâtoâRSâ232 adapter?
Compatible with UniStream Builtâin controllers featuring a UniâCOMâ¢â¯CB COM module jackârefer to your UniStream specification sheet for compatibility.
Use shielded RSâ232 cable up to 15â¯m (50â¯ft) to maintain signal integrity.
Yesâtypical current draw is approximately 160â¯mA from the IO/COM bus.
USBâtoâRSâ232 converters rely on driver support, which UniStream PLCs cannot provide. For a true industrial RSâ232 interface, this hardware modular solution is necessary.
