Cisco 4 Port PA-4T+ データシート

Data Sheet

Increasing demand for bandwidth-intensive services and wide-area network (WAN)

c o n n e c t i v i t y r e q u i r e s t h at n e t wo r k a d m i n i s t r ato rs m a x i m i z e t h e c a pac i t y a n d

e f f i c i e n c y o f n e t w o r k r o u t e r s . C i s c o Sy s t e m s ' f o u r- p o r t s e r i a l p o r t a da p t e r

provides network administrators with flexible options for a broad range of port

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performance at a low price per port---making them the most cost-effective solution

for maximizing router efficiency.

The four-port adapter (PA-4T+) provides four synchronous

serial ports. Each port supports full-duplex operations at T1

and E1 speeds. A single port can support up to E2 speeds.

Each port also supports a variety of interface types,

determined by the separately purchased cable type connected

to it. Supported interfaces include EIA/TIA-232, EIA/

TIA-449, V.35, X.21, and EIA-530, allowing flexible

deployments as either DCE or DTE equipment. The

four-port adapter is the most cost-effective solution for

low-traffic WAN connections or remote Cisco 7200

installations.

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).

• Cost-effective solutions for any environment

– Delivers very low price-per-port and provides higher

performance than comparable solutions

– Provides low-cost entry for small enterprise WANs

– Provides Internet Service Providers (ISPs) with high

serial density for Cisco 7200 series routers, lowering

cost per port and cost per subscriber

• 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)

• 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