Overview

The PCOS004850, as an opto-isolated RS485 serial connection card, is specifically designed for pCO Sistema controllers. As a dedicated expansion module, it enables reliable, noise-immune serial communication with BMS or Modbus networks. Additionally, its built-in optical isolation protects the controller from electrical interference and surges.

Key Features

Opto-isolated RS485 serial interface for noise immunity
Supports communication speeds up to 19200 baud (software-configurable)
Directly compatible with pCO Sistema controller family
Plug-in terminal connector for easy wiring
Built-in 120 ohm termination resistor support
Compact form factor for easy installation in controller slots
Ensures electrical isolation between the controller and RS485 network

PCOS004850 RS485 Serial Card

technical specifications table

Specifications	Details
Model	PCOS004850
Product Type	Opto-Isolated RS485 Serial Connection Card
Compatibility	pCO Sistema Controllers
Working Voltage	5VDC (controller bus powered)
Operating Temperature	-20 °C ~ +60 °C
Mounting	On-board plug-in
Product Length	2.35 inches (5.969 cm)
Product Width	1.5 inches (3.810 cm)
Product Height	1 inch (2.540 cm)
Product Weight	0.04 lbs (0.018 kg)
Country of Origin	China
HS Code / Schedule B No.	9032.89.6085
Shipping Length	3.9 inches (9.906 cm)
Shipping Width	2.2 inches (5.588 cm)
Shipping Height	2.15 inches (5.461 cm)

Same Series Display Models

PCO1004850

PCOE004850

PCOSER4850

Matching Series Controllers

pCO1

pCO3

pCO5 Compact

pCO5

pCO5+

pCOXs

Application Scope

Designed for HVAC/R equipment using pCO controllers, including commercial air conditioners, chillers, refrigeration units, and rooftop systems that require RS485 communication with building management systems.

Packaging & Shipping

Neutral safe packaging, shockproof and drop-proof protection
Global shipping via DHL, UPS, FedEx and sea freight options
In stock support for fast delivery
Wholesale, retail and mixed order are acceptable

Our Service

We provide full series of refrigeration and HVAC spare parts, including control display panels, temperature controllers, sensors, power modules and industrial electrical accessories.

For technical parameters, dimension drawing, cross reference model or bulk discount, please feel free to contact us. Cick Contact us.To consult HVAC standard pls click HVAC standard.