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T1 Circuit, RJ-48C Cabling question.

We have a T1 circuit installed and is terminated into an RJ-48c jack.  The router is a Cisco ISR4331 with a NIM-2MFT-T1/E1.  NIM has a integrated CSU/DSU.  My question is what pinout standard should I the cable be connect the T1's RJ-48c to the router?  Would the straight-through cable with a 568b pinout work?  I'm not really sure about L1 information, and my field tech doesn't have a clue.  This T1 will be used for data only.

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8/22/2022 - Mon