Black Box BRTS-100 Manual De Usuario

This compact, rugged ISDN S/T interface line test set provides many essential
diagnostic functions.  It’s easy to use, too, requiring very little knowledge
about complex ISDN protocols. The Test Set:

• Verifies physical layer (Layer 1) parameters.
• Checks for D Channel Access.
• Is lightweight and hand-held.
• Derives power from a 9-volt battery.
• Includes easy-to-use, Pass/Fail LEDs that give instantaneous test results.
• Can monitor a D Channel.
• Samples every frame on the line (one every 250 microseconds).
• Supports various modes of operation for fault isolation.
• Can be used in either passive bus or point-to-point configurations.
• Verifies DC Continuity.
• Features Power Indication lamps that indicate battery presence and

polarity.

• Generates a 4-KHz test tone.
• Includes a speaker that allows audio monitoring of line activity.