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*** Cisco 7000 Series Routers Modules ***
01) Model: PA-8T
02) sale
03) used
PA-8T—An Eight Serial Port Adapter for Cisco 7000 Family Routers
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Increasing demand for bandwidth-intensive services and wide-area network (WAN) connectivity requires that network administrators maximize the capacity and efficiency of network routers. Cisco Systems' serial port adapters provide network administrators with flexible options for a broad range of port density requirements. Cisco's eight-port serial port adapter enhances network performance at a low price per port---making them a cost-effective solution for maximizing router efficiency.
Eight-Port Serial Port Adapter
Cisco's eight-port serial port adapter (PA-8T) delivers high-density WAN connectivity for enterprise and service provider networks. It provides up to eight full-duplex serial interfaces for the Cisco 7200 and 7500 Series routers. The eight-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). Its high density doubles the number of available ports in the same space as the four port adapter (PA-4T+). This enables up to sixteen ports per chassis slot in VIP2-based systems.
The eight-port adapter offers unmatched flexibility. Network administrators can provision eight T1 (1.55 Mbps) or E1 (2.048 Mbps) ports, four ports delivering speeds up to 4 Mbps, or two ports delivering speeds up to 8 Mbps (E2). Three models of the PA-8T provide eight ports of either V.35, EIA/TIA-232 or X.21 electrical interfaces. A single eight-port fan-out cable provides connection to the PA-8T, simplifying cabling requirements. High port density, a low cost per port, and high-performance combine to deliver the highest possible network throughput while minimizing network infrastructure costs.
Benefits
Cost-effective solutions for any environment
Delivers very low price per port and provides higher performance than comparable solutions
Provides Internet service providers (ISPs) with high serial density for Cisco 7200 series routers, lowering cost per port and cost per subscriber
Enables up to 16 ports per slot in Cisco 7505, 7507, 7513 Series routers using VIP2 technology
Supports high-density connectivity
Supports eight full-duplex T1/E1 connections or two full-duplex E2 connections
Adapter cables determine port mode (DTE or DCE)
Effectively doubles number of available ports in same space
Carrier-Class Reliability and Serviceability
Field-replaceable design permits online insertion and removal for continuous router availability
Port-adapter handles simplify installation and removal
Ease of use
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
Specifications
Ordering information
PA-8T-232
EIA/TIA-232 interface
PA-8T-V35
V.35 interface
PA-8T-X21
X.21 interface
Operator indicators LEDs (all models)
DTE or DCE function
Transmit Data
Transmit Clock
Receive Data
Receive Clock
Network interfaces
Eight full-duplex ports at T1 (1.55 Mbps) or E1 (2.048 Mbps)
Four full-duplex ports at up to 4 Mbps each
Two full-duplex ports at up to E2 speeds (8 Mbps)
Electrical interfaces (all ports have same interface)
V.35: PA-8T-V35
EIA/TIA-232: PA-8T-232
X.21: PA-8T-X21
Connectors and Cables
V.35: DTE
34-pin Winchester-type male
CAB-OCT-V35-MT (=)
V.35: DCE
34-pin Winchester-type female
CAB-OCT-V35-FC (=)
EIA/TIA-232: DTE
DB-25 male
CAB-OCT-232-MT (=)
EIA/TIA-232: DCE
DB-25 female
CAB-OCT-232-FC (=)
X.21: DTE
DB-15 male
CAB-OCT-X21-MT (=)
X.21: DCE
DB-25 female
CAB-OCT-X21-FC (=)
*** 참고 자료 ***
http://www.cisco.com/en/US/products/hw/modules/ps2033/products_data_sheet09186a0080091cd6.html
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