PA-4T+ | Cisco Serial Port Adapter

Description 

The Cisco PA-4T+ is a serial port adapter module featuring 4 high-speed synchronous serial interfaces using DB-60 connectors.

Technical Specifications 

Information About PA-4T+

The Cisco PA-4T+ is a serial port adapter (SPA) designed for use in Cisco 7200 and 7500 Series routers, providing four high-speed synchronous serial interfaces. Each port uses a DB-60 connector and supports a wide range of WAN protocols, making it a flexible solution for enterprise and service provider edge networks that rely on serial connectivity.

Key Features:

• 4 High-Speed Serial Ports:

  • DB-60 connectors

  • Individually configurable interfaces

  • Each supports speeds up to 8 Mbps

• Supported WAN Encapsulations:

  • HDLC (High-Level Data Link Control)

  • PPP (Point-to-Point Protocol)

  • Frame Relay

  • X.25

  • SDLC and others

• Interface Capabilities:

  • Full-duplex synchronous communication

  • Supports clocking (DTE and DCE modes)

• Hot-Swappable: Can be inserted or removed without powering down the router (when supported by platform)

• Versatile Use Cases: Ideal for connecting to WAN services such as leased lines, CSU/DSUs, and frame relay switches
  

• Port Count: 4 synchronous serial ports

• Connector Type: DB-60

• Maximum Throughput per Port: Up to 8 Mbps (depending on platform)

• Compatibility:

  • Cisco 7200 Series Routers

  • Cisco 7500 Series Routers (via VIP – Versatile Interface Processor)

• Interface Standards: EIA/TIA-232, EIA/TIA-449, V.35, X.21, EIA-530, EIA-530A (with appropriate cables)