The Abaco Systems / SBS PMC-HS-Serial is a single-wide PMC module delivering quad-channel high-speed serial communication in space-constrained environments. Each channel is fully programmable to support synchronous protocols up to 10 Mb/s (with external clock) and asynchronous protocols to 2 Mb/s. The module handles asynchronous, synchronous, monosync, bisync, HDLC, SDLC, LAPB, LAPD, ISDN, and PPP traffic without requiring hardware reconfiguration. Physical interfaces—RS-232, RS-422, EIA-449, EIA-530, and V.35—are software-configurable, enabling rapid deployment across diverse network architectures.

Technical Specifications

• Form Factor: Single-wide PMC
• Channels: 4 independent serial channels
• Data Rates: Synchronous up to 10 Mb/s (external clock); asynchronous up to 2 Mb/s
• Protocols: Asynchronous, synchronous, monosync, bisync, HDLC, SDLC, LAPB, LAPD, ISDN, PPP
• PCI Bus: 3.3 V or 5.0 V signaling; 33 MHz or 66 MHz operation
• Oscillator: 14.7456 MHz standard; user-supplied oscillator location available
• Central FIFOs: Receive 128 × 32 bits; transmit 128 × 32 bits
• Channel FIFOs: Receive 17 × 32 bits; transmit 8 × 32 bits per channel
• DMA Controllers: Eight available for central FIFO burst transfers to shared memory

– Key Features

• Seven signal pairs per channel routed to rear-panel P4 and front-panel connectors
• Software-configurable interface selection eliminates hardware jumpers or daughter cards
• Optional transition cable converts 68-pin front-panel connector to four DB25 connectors
• Front- and rear-panel I/O supported for flexible deployment
• Dual-oscillator design supports standard asynchronous rates and custom baud rate generation

– Compatibility & Integration

• Requires bus-mastering CPU slot
• Controller: Siemens PEB20534 Serial Communication Controller with integrated PCI interface
• VxWorks 5.3 driver available for asynchronous operation