Overview
The Sealevel COMM+2/EX 3087 Rev B (IC113C) is a dual-port serial communication card designed for ISA-bus systems in CNC machines, industrial controls, and legacy manufacturing equipment. This card bridges modern serial devices to older industrial control platforms, making it essential for system upgrades and retrofit applications where RS-232 and RS-422 connectivity is required.
Key Features
- Dual serial ports supporting both RS-232 and RS-422 standards
- ISA-bus interface for compatibility with legacy industrial controllers
- Revision B design with improved stability and reliability
- Compact card form factor for standard ISA slots
- Independent port configuration for mixed serial protocol requirements
Technical Specifications
- Card Type: ISA Communication Card (16-bit)
- Serial Ports: 2 (dual RS-232 and RS-422 capable)
- Interface Standards: RS-232, RS-422
- Part Number: COMM+2/EX 3087
- Revision: Rev B
- Form Factor: ISA Half-slot Card
- Connector Type: DB-9 serial connectors
Typical Applications
- CNC machine tool control system serial communication
- Legacy industrial PLC and control module connectivity
- Multi-device serial polling and data acquisition
- Equipment integration and system modernization
- FANUC and Yaskawa CNC platform serial expansion
Compatibility & Replacements
Compatible With
- ISA-bus industrial control systems and CNC platforms
- Legacy computer systems with ISA card slots (i386 and later)
- FANUC CNC controls with ISA communication requirements
- Industrial measurement and data collection systems
- Serial device multiplexing and router applications
Replaces / Drop-In Replacement For
- Verify compatibility with your system integrator before ordering. This card is specific to ISA-bus systems; modern systems may require USB or Ethernet communication alternatives.
Works With
- Serial communication protocols: RS-232, RS-422
- ISA-bus motherboards and industrial computer platforms
- Industrial software requiring dual serial port expansion
- CNC control systems supporting external serial communication modules
