| 摘要 |
A cable continuity tester and tracer includes a cylindrical barrel housing a battery, a cable connector with two contacts, a bicolor LED and a detachable, tone-generating portion. A circuit board in continuity with the battery, LED and both contacts of the connector permits the LED to glow read upon encountering a short in a tested cable, and to glow green upon encountering a low-resistance terminator on the cable of from 50 to 75 ohms. The tone generating portion issues an audible signal when placed on an opposite end of a cable from the tester, when the cable has good continuity.
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