Agilent/Keysight 4955A

The Agilent/Keysight 4955A is a protocol analyzer designed for testing and troubleshooting data communication networks. It provides capabilities for capturing, analyzing, and simulating network traffic across various protocols and interfaces. This instrument is aimed at identifying and resolving network issues to ensure optimal performance.

### Technical Specifications

* **Compatibility:** The Agilent 4951B protocol analyzer is compatible with the Agilent 4953A and 4955A.
* **Protocols Supported:** Supports protocols such as X.25, SNA, X.21, DDCMP, HDLC, SDLC (NRZI), BSC, IPARS, and character asynchronous or synchronous protocols.
* **Data Codes:** Capable of handling ASCII, EBCDIC, Baudot, Six Bit Transcode, IPARS, and EBCD data codes.
* **Capture Memory:** Features a 32 KB RAM for storing data characters, timing, and lead status information. An optional tape drive offers 512 KB for storing data, timing information, and configurations.
* **Lead Status Monitoring:** Monitors and stores the status of five control leads (RTS, CTS, DTR, DSR, and CD for RS-232C/V.24; CS, RS, RR, TR, and DM for RS-449) for each interface.
* **Character Framing:** Supports 5, 6, 7, or 8 information bits per character, plus parity. For asynchronous systems, it allows 1, 1.5, or 2 stop bits per character.
* **Error Checking:** Implements error checking mechanisms including CRC-CCITT, CRC-16, CRC-12, CRC-6, LRC, and parity.
* **Triggering:** Offers 63 trigger types, including characters, errors, interface lead transitions, or timer values. Up to 19200 bits per second can be simultaneously active.
* **Timers:** Includes five timers, each with a maximum count of 65565 ms and a resolution of 1 ms.
* **Data Transmission Rate:** Capable of operating at speeds up to 19200 bits per second.
* **Display:** Features a 12.7 cm (5 inches) diagonal display with 16 lines and 32 characters per line.
* **Display Formats:** Supports DTE data over DCE data, Data and Lead State, DTE data only, DCE data only, and Frame and Packet decode formats.
* **Send Strings:** Allows for send strings of up to 255 characters per string, with a total of 1750 characters.
* **Remote Capability:** Provides remote control and analysis via a separate rear panel RS-232C/V.24 port or through an interface pod.
* **Bit Error Rate Testing (BERT):** Simultaneously measures bit errors, block errors, errored seconds, and percent error-free seconds.
* **Block Size:** Supports block sizes of 63, 511, 1000, or 2047 bits.
* **Patterns:** Generates 63, 511, 2047 bit pseudo-random sequences.
* **Error Injection:** Includes a function to inject single errors or bursts of errors.
* **Physical Dimensions:** The unit measures 11.2 H x 25.9 W x 28.6 cm D (4.4 x 10.2 x 11.3 in.).
* **Weight:** The net weight is 5.7 kg (12.6 lb), and the shipping weight is 9.5 kg (21 lb).
* **Operating Temperature:** 0°C to +55°C (32°F to 131°F).
* **Storage Temperature:** -40°C to +75°C (-40°F to 167°F).

### Interfaces

* **RS-232C/V.24:** Used for data transmission, remote control, and program transfer.
* **RS-170 Video Port:** Supported for external viewing.

### Compatibility

* **Agilent 4951B:** This unit is compatible with the Agilent 4953A and Agilent 4955A protocol analyzers.

### Why Choose Aumictech for Agilent/Keysight 4955A?
At Aumictech, we specialize in supplying high-end protocol analysis equipment. Whether you need robust network traffic analysis, precise protocol simulation, or comprehensive troubleshooting capabilities, our team ensures the Agilent/Keysight 4955A delivers maximum performance for your critical data communication testing applications.