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> Hp 4937S transmission impairment measuring set
Hp 4937S transmission impairment measuring set
Hp 4937S transmission impairment measuring set
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http://recycledequipment.com/index.cfm?fuseaction=product.display&Product_ID=1850
The 4938A Network Circuit Access Test Set is combined with the 4937A to make up the 4937S, a complete Network Access Transmission Test Set. The 4938A provides additional network access and margin testing capabilities. It includes access to 4-wire simplexed leads, generating ringing signal, and providing access for loop current and ringing voltage measurement.
The HP4937A Transmission Impairment Measuring Set contains a set of voice band transmission tests— level/frequency measurement, noise, and 2- and 4-wire return loss measurements. It also has the ability to seize and hold three types of E/M lines. In addition, the 4937A simulates signaling both from the central office and from the PBX at the network interface.
The HP4938A provides additional network access and margin testing capabilities. It includes access to 4-wire simplexed leads, generating ringing signal, and providing access for loop current and ringing voltage measurement.
• Option 001 = Rechargeable Batteries • Option 002 = Replace 900 ohms with 150 ohms.
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