PA-4T+= - Cisco Parts Data Networking Device

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Part # Description Availability Price Order
PA-4T+= Accessories, 4-Port Serial Port Adapter (Enhanced)

PA-4T+= Details

General Information

  • Product Type: Port Adapter
  • Brand Name: Cisco
  • Manufacturer: Cisco Systems, Inc
  • Product Name: Serial Port Adapter

Technical Information

  • Application/Usage: Data Networking


  • Interfaces/Ports: 4 x T1/FT1 WAN
  • Interfaces/Ports Details: 4 x DB-60 T1/E1 WAN


  • Compatibility:
    • Cisco 7200 Series router
    • Cisco 7500 Series router
    • Cisco 7200 Series router
    • Cisco 7500 Series router
  • Certifications & Standards:
    • FCC Class Limits (FCC 47 CFR Part 15 Subpart B)
    • EN55022 Class Limits
    • UL 1950 D3 Dev.
    • CSA 22.2 Nos. 950
    • TUV-IEC 950
  • System Requirements:
    • The PA-4T+ port adapter requires only a single slot in a Cisco 7200 Series router
    • For Cisco 7500 Series routers, it requires one of the two available adapter slots on a Versatile Interface Processor (VIP2)
    • Requires IOS Release 11.1.8CA (and above) or 11.2.5P (and above)
  • Additional Information:
    • When two full-duplex ports are in use, the maximum speed for each is 4 Mbps
    • When four full-duplex ports are in use, the maximum speed for each is 1.55 Mbps (T1) or 2.048 Mbps (E1)<br><br> Network interfaces:
    • Four full-duplex ports at T1 (1.55 Mbps) or E1 (2.048 Mbps)
    • Two full-duplex ports at up to 4 Mbps each
    • One full-duplex port at up to E2 speeds (8 Mbps)
    • Electrical interfaces (selectable via cable selection)<br> - V.35<br> - EIA/TIA-232<br> - EIA/TIA-449<br> - EIA-530<br> - X.21<br><br> Four-port design provides flexibility:
    • Supports four full-duplex T1/E1 connections or a single full-duplex E2 connection
    • All ports use identical 60-pin, D-shell receptacle that supports all interface types (i.e. RS232, RS449, RS530, V.35, x.21)
    • Adapter cables determine the electrical interface and port mode data terminal equipment (DTE) or data communications equipment (DCE)<br><br> Carrier-Class Reliability and Serviceability:
    • Field-replaceable design permits online insertion and removal for continuous router availability
    • Port adapter handles simplify installation and removal
    • Support for loopback for remote diagnostics
    • LEDs indicate when the adapter is enabled for operation
    • Separate LEDs for each port indicate DTE or DCE function, transmit data, transmit clock, receive data, and receive clock signals
    • Metric (M3) thumbscrews included with each port adapter cable allow connections to devices that use metric hardware


  • Status Indicators:
    • Enable (1 per Port Adapter to indicate enabled hardware)<br><br> Operator indicators LEDs (5 per channel for a total of 20 LEDs per Port Adapter):
    • DTE or DCE function
    • Transmit Data
    • Transmit Clock
    • Receive Data
    • Receive Clock

Media & Performance

  • Data Transfer Rate:
    • 1.55 Mbps T1 Full-duplex
    • 2.05 Mbps E1 Full-duplex
  • Connectivity Media: Serial Cable

Environmental Conditions

  • Humidity: 10% to 90% Non-condensing
  • Temperature: 50°F (10°C) to 104°F (40°C) Operating


  • Limited Warranty: 90

The Cisco PA-4T+= is also known as CSC-PA4T+= or PA4T= .