Check the listing for details. TTC T-BERD 307 DS1 / DS3 Communications Analyzer WITH CASE. Condition: Seller refurbished. Listed at 1600.00 USD. The T-BERD 307 is a handheld instrument specifically designed to fully test DS3 circuits.The T-BERD 307 with option 307-1 adds full DS1 testing capability.Battery operation typically provides two hours of continuous operation on a full charge. You need all this from a field test instrument to effectively install and maintain your expanding DS3-based services. TTCﾒs T-BERD 307 meets all your needsﾅand more.This handheld test instrument is specifically designed and powerfully engineered to comprehensively test DS3 and the host of new communications technologies DS3 supports, including wireless communications, video conferencing, distributed data processing, and workstationbased graphics.The T-BERD 307 goes wherever it is needed. Test from the central office to the customer premises, and anywhere in-between. Monitor and analyze DS1 tributaries at DS3 access points. Troubleshoot DS1/DS0 signals while verifying DS3 circuits. Simulate network equipment and loopback customer equipment.The T-BERD 307 fully tests DS3 and DS1 circuits simply and easily by automatically configuring instrument setup to save you time and money.Identify Timing ProblemsQuickly identify timing impairments, a common source of errors in asynchronous and synchronous networks. Access the DS1 timing reference from DS3 or DS1 access points.Easily Test Far-End EquipmentAutomatically loop up the far-end and verify if data is being properly received on specified DS1 channels by transmitting C-bit FEAC or DS1 loop codes. Results and alarms are immediately visible on the front panel.Troubleshoot DS3 and DS1 ChannelsSimulate a multiplexer or a 3:1 cross-connect for DS3 and DS1 circuit qualification. Test patterns, tones, or loop codes can be inserted on one or all DS1 channels for additional testing flexibility. DS1 channels can be dropped from the received DS3 signals to test and monitor.Test from a Variety of Access PointsUnmatched flexibility to test from multiple access points in the network. Test tributaries at DS3 access points or use as a stand-alone DS1 test instrument.Monitor VF ChannelsListen to individual channels and monitor ABCD signaling bits on all 24 channels when troubleshooting DS0 problems. Measure VF level and frequency with the channel monitor feature.Maximize Stress TestingTransmit and receive pre-programmed, long user-patterns including 55 OCTET and T1 DALY.Reduce Setup TimeThe automatic configuration feature immediately determines the proper framing and pattern so the technician can quickly monitor live circuits.Combine Convenience with PowerBattery operated, rugged, and lightweight (4.2 lbs.), this test set is ideal for the field service technician.Multiplexed DS3 PatternsSimulates 3:1 multiplexer or cross-connects for DS3 and DS1 circuit qualification. Test patterns, tones, loop codes, or errors can be inserted on one or all DS1 channels for additional testing flexibility. DS1 channels can be externally analyzed or dropped from the received DS3 signal.Isolate Network Synchronization ProblemsTiming problems are easily identified. Compare T1 circuit against a network reference clock to isolate timing slips.SpecificationsDimensions and Weight Overall Dimensions: 8.5 x 4.24 x 3.25 in. (21.6 x 10.8 x 8.3 cm) Weight: 4.2 lbs. (1.9 kg)Environment Temperature Range: Operating: 0° to 50° C (32° to 122° F) Storage: -40° to 75° C (-40° to 167° F) TTC T-BERD 307 DS1 / DS3 Communications Analyzer (BC# 17337) (2) Bantam To Bantam CablesTTC P/N: 80-31765-01 Cable(2) 440-440 CablesAC Adapter/ChargerHard Copy User ManualStrap For UnitCarrying Case w/ Strap