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CHAPTER
1-1
PA-4T Synchronous Serial Port Adapter Installation and Configuration
OL-3560-02
1
Overview
This chapter describes the PA-4T port adapter and contains the following sections:
• Port Adapter Overview, page 1-1
• Synchronous Serial Overview, page 1-2
• LEDs, page 1-3
• Cables, Connectors, and Pinouts, page 1-4
• Port Adapter Slot Locations on the Supported Platforms, page 1-13
• Identifying Interface Addresses, page 1-15
Port Adapter Overview
The PA-4T, shown in Figure 1-1, provides four channel-independent, synchronous serial ports that
support full-duplex operation at T1 (1.544 Mbps) and E1 (2.048 Mbps) speeds. Each port supports any
of the available interface types: Electronics Industries Association/Telecommunications Industries
Association (EIA/TIA)-232, EIA/TIA-449, V.35, X.21, and EIA-530. The cable attached to each PA-4T
interface port determines its type (EIA/TIA-232, and so forth) and its mode (DCE or DTE).
Note Although the VIP supports online insertion and removal (OIR), individual port adapters do not. To
replace port adapters, you must first remove the VIP from the chassis, and then replace port adapters as
required.
Cisco 7200 series routers support OIR of all port adapter types.
Figure 1-1 PA-4T—Faceplate View
H4496
FAST SERIAL
EN
TD
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TD
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