9/ Finally - finally - I REALLY looked at the keystone jack I was using. Yes, it was RJ-12, not RJ-45. BUT...
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10/ The RJ-12 jacks are made in the same factory as the RJ-45s. See those punchdown-like terminals on the back end?pic.twitter.com/ja8TOSXAvo
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11/ RJ-11 needs 4 (two phone lines) RJ-12 needs 6 (max 3 phone lines) RJ-45 needs 8.
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12/ So factory RE-USES the 8-position punchdown block between all of the keystone jacks. Just don't put metal contactors in all positions
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13/ You see where this is going.
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14/ They DO apply a sticker that has 6 labels that sorta match up against the 8 locations. Sorta.
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15/ Somewhere in this process I had switched from a keystone jack from factory A, where the FIRST pair of locations had no contacts
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16/ to a jack from factory B, where the LAST pair of locations had no contacts.
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17/ The stickers were exactly the same, though. In fact, at first I thought that there were just 6 locations in the punchdown block
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18/ So anyway I'd been sticking blue wires into metal-less plastic recptacle, pushing down, testing, pulling blue and pushing brown, testing
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19/ back and forth back and forth and every single thing I could test was good and NO jacks worked
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20/ sigh
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21/ all better now, though Time to either apply for some contract work...or go down to workshop and build a sign for end of driveway.
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