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by wolrah
450 days ago
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> (really RJ-38 but that's excessively pedantic) RJ-38 is a 8P4C (eight pin, four conductor) modular connector with shorting bars used to allow an alarm system or similar to seize a phone line when plugged in but for the line to still operate normally with the plug removed. You might be thinking of RJ-48 which is used in T1 service and thus often has "RJ45" cables plugged in to it, but technically that's 8P4C as well, also with (differently configured) shorting bars that will physically loop the T1 if disconnected. Ethernet uses an 8P8C modular connector but it's not any of the Registered Jack standards |
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