Datacom Analyzer

Datacom Analyzer
Portable USB Datacom Analyzer

Datacom Analyzer Software Ver 6.23 is Now Available! Download it here

Overview

Data Communications refers to the transmission of digital information over a communication channel. The data transmission types include either parallel or serial type transfer. When data transmission is required over long haul, it is feasible to use serial type transfer as it allows high data rates with cost efficiency. Serialized data can be of asynchronous or synchronous in nature.

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Different transmission mediums have evolved over the years for transmitting data signals, either electrically, optically, or as radio waves. The selection of the transmission medium largely depend on the distance over which data signals needs to transferred, data rates, cost, and reliability.

GL's Datacom Analyzer/Emulator is an optional board available with GL's tProbe™ T1 E1 Analyzer USB Unit. The portable tProbe™ T1 E1 and Datacom Analyzer is designed for test and verification of data communications equipment and circuits – specifically serial interfaces that provide clock, data, and control signals. These are commonly encountered in military links, satellite circuits, WAN, and data modem interfaces. Software selectable modes are provided to emulate DTE, DCE and non-intrusive monitoring for both synchronous (sync), and asynchronous (async) modes. Interface standards X.21, V.24, V.35, RS-449, RS-485, EIA-530 and EIA-530A are supported. Also supported are line codings such as Manchester. Various cables are provided for these interfaces to make testing convenient.

For detailed list of datacom cables refer to Datacom Board – Cables.

Main Features

Supported Line interfaces - V.24, V.35, X.21, RS-449, RS-485, EIA-530 and EIA-530A
Sync BER from 300 b/s to 16.384Mbps
Async BER from 300 b/s to 115.2Kbps
DTE or DCE emulation mode
SYNC clock source and sense selection
Frequency measurement
Handshaking signals control and monitoring

Typical Application

Bidirectional monitoring with Y-adapter cable
Monitor control leads, frequency
DTE/DCE emulation for end-to-end testing of data networks, bidirectional monitoring for a greater level of troubleshooting for data networks

DTE Emulation Mode

DCE Emulation Mode

Verifying end-to-end transmission through DCE or DTE

Monitoring Data Communication Lines

Supported Datacom Interfaces

RS232C
It is a standard interface for serial data for connecting DTE to DCE computer serial ports.

RS-423
It is a higher speed unbalanced interface similar to RS-232C. The Datacom board supports this with RS-232C interface setting.

RS-449
It is a high speed serial data communication interface. This interface used unbalanced or pairs of signals to transmit and receive clock and data. This interface typically uses a 37 pin connector.

RS-422/RS-485
It is similar to the RS-449 standard with changes only to the logic levels. This is sometimes used with a multi drop configuration of up to 10 receivers with 1 transmitter. Difficult to setup but can fill low cost reliable data communications.

V.35
It is another high speed serial data communication interface. This interface also uses unbalanced or pair of signals to transmit and receive clock and data. This interface typically uses a 35 pin connector.

RS-530
It is another high speed serial data communication interface. It is a common interface used to replace a 25 pin connector instead of using the RS-449 DB-37 or V.35 connectors.

ASYNC Configuration
Configuration functionality allows to configure various Tx/Rx parameters such as Data Bits, Parity Bits, and Stop Bits.

Datacom Async Configuration

Loopback Types

No Loopback - This option disables any existing loopback conditions.
Outward Loopback - In this configuration the data sent from the CSU are received by the Datacom interface and are immediately retransmitted to the CSU.
Diagnostic (Input + Output) Loopback - Loops the internal transmit clock and data to the internal receive clock and data along with looping the external clock and data back to the incoming device.
Cross-port Loopback - It takes the Rx data from the DTE and places it on the Rx of the DCE. It also takes Rx data from the DCE and places it on the Tx of the DTE.

Monitoring of Control Signals and Frequency

Displays the following signal activity on the Datacom DCE and DTE interfaces along with the frequency measurements for each port.

Monitoring Datacom Line Status

RXD: (Received Data)
This is the serial encoded data received by a DTE from a DCE which has in turn received from another source.

RXC: (Receive Complete)
The RXC bit will be set to HIGH(1) when data has been received and is available in the buffer.

TXC: (Transmit Complete)
The TXC bit is set to HIGH(1) when a transmission is completed and there is no other data to send.

CTS: (Clear to Send)
This is set true by a DCE to allow the DTE to transmit data. The DCE would use its CTS to prevent any transmission by the distant DTE. This is called hardware flow control or hardware handshaking.

RI: (Ring Indicator)
This signal is used for auto answer applications. DCE raises when incoming call detected used for auto answer applications.

DSR: (Data Set Ready)
This should be set true by a DCE whenever it is powered on. It can be read by the DTE to determine that the DCE is on line. In data acquisition application is generally false.

DCD: (Data Carrier Detect)
This is set true by a DCE when it detects the data carrier signal on the Datacom line.

Frequency
Displays operating Frequency in Hertz.

Monitoring Multiframes
This application permits viewing unframed data on a Datacom port. Approximately 2 seconds of data is captured for viewing. For Datacom systems, 16 frames are displayed per multiframe.

Monitoring Multiframes

Intrusive Test Applications

Bit Error Rate Test
The Bit Error Rate Test (BERT) application generates/detects Pseudo Random Bit Sequence (PRBS) for testing performance of data communication circuits.

Precision Delay Measurement
Precision Delay Measurement measures the Round Trip Delay of a system. Sending a BER pattern with the insertion of an error bit and timing the reception of the error bit do the Round Trip Delay measurement. Measurement is precise and accurate to the microsecond level. A delay up to 8 seconds can be measured

Rx to Tx Loop back
This application is used in conjunction with a Bit Error Rate Test to verify the operation of Cards and Laptop units.

Error Insertion
The Error Insertion application permits inserting single, fixed, automatic, random, and burst error into the incoming or outgoing bit stream.

Optional Applications

Record/Playback Applications

Record / Playback Disk Files
This optional software (XX020) permits record/playback to/from file across DTE/DCE interfaces. The three applications provided are: Playback from File, Automated Record Playback , Automated Continuous Capture.

Record from multiple cards
This application permits capture of data being transmitted on (any one or both) Datacom analyzer to a file.

Automated Record Playback
The 'Automated Record/Playback (ARP)' application is an extremely versatile and rugged application incorporated in Datacom analyzer that makes it very easy for the user to run several transmit or receive operation tasks simultaneously.

Automated Continuous Capture
Automated Continuous Capture (ACC) allows users to capture different types of data (*.ala, *.ula, *.pcm, *.wav, *.ber) continuously into different files. Instead of capturing data from a card in one big block, it is possible to capture seamless chunks of data in files of the specified size, or specified time limit of capture.

Protocol Analyzers and Emulators

Protocol Analysis
GL's protocol analyzers can be used to diagnose signaling problems quickly and effectively by analyzing traffic on multi-protocol signaling networks. It monitors signaling interactions in fixed, access and wireless networks. It analyzes multiple protocols like HDLC, Frame Relay, and PPP.

Screenshots

HDLC Protocol Analysis over Serial Data Lines HDLC Protocol Analysis Application
Frame Relay Protocol Analysis over Serial Data Lines
PPP Protocol Analysis over Serial Data Lines
Playback from File
Record from multiple cards
Automated Record Playback
Automated Continuous Capture
Error Insertion
Precision Delay Measurement
Rx to Tx Loop back
Bit Error Rate Test

Buyer's Guide

Please Note: The XX in the Item No. refers to the hardware platform, listed at the bottom of the Buyer's Guide, which the software will be running on. Therefore, XX can either be ETA or EEA (Octal/Quad Boards), PTA or PEA (tProbe Units), UTA or UEA (USB Units), HUT or HUE (Universal Cards), and HDT or HDE (HD cards) depending upon the hardware.

	Datacom Board – Cables
Item No.	Item Description
PTE025 PTE001 PTE002	tProbe™ Unit with Datacom Analyzer Optional Board tProbe™ T1 E1 Base Unit Datacom Only Analyzer Software for tProbe™ requires PTE025; Basic T1 or E1 software is NOT required
DBC001 DBC002 DBC003 DBC004 DBC005 DBC006 DBC007 DBC008 DBC009	DB-25-3-M/M ASSY – DB25 3 FT MALE TO MALE DB-25-3-F/F ASSY – DB25 3 FT FEMALE TO FEMALE DB-25-3-M/F ASSY – DB25 3 FT MALE TO FEMALE DB25F-3-DB37F ASSY – DB25 FEMALE TO DB37 FEMALE 3FT DB25M-3-DB37M ASSY – DB25 MALE TO DB37 MALE 3FT DB25F-3-V.35F ASSY – DB25 FEMALE TO V.35 FEMALE 3 FT DB25M-3-V.35M ASSY – DB25 MALE TO V.35 MALE 3 FT DB25F-3-DB15F ASSY – DB25 FEMALE TO DB15 FEMALE 3 FT DB25M-3-DB15M ASSY – DB25 MALE TO DB15 MALE 3 FT
	Related Software
PTE020 PTE090 PTE130 PTE135	Record/Playback File Software (Including Automated Continuous Capture and Automated Record Playback Software) T1 or E1 Real-Time HDLC Decode/Store/Impairment/Rx-Tx Test Applications T1 or E1 Real-Time Frame Relay Protocol Analyzer T1 or E1 MLPPP Analyzer
	Related Hardware
LTS010 LTS011 LTS012 LTS001 LTS002 LTS003	LinkTest™ DualE1 LinkTest™ DualE1 with DataCom ports LinkTest™ DualE1 with DataCom ports and Jitter/Wander and Pulsemask LinkTest Single Hand Portable Single T1E1 Test set LinkTest Single Hand Portable Single T1E1,T3E3 Test set Portable Dual T1E1,T3E3 Test set with full color display

*Specifications are subjected to change