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UC560 - ISDN PRI question

devin.culp
Level 1
Level 1

I have a UC560 and plan to use ISDN PRI over T1. My question is from the DMARC to the UC500 PRI interface is it required to use a RJ48 patch cable or can a RJ45 Cat5e cable be used instead. The end result I want to do it right.Thank you

3 Replies 3

paolo bevilacqua
Hall of Fame
Hall of Fame

You should use a T1 cable (cat 3). If Ethernet cable is used, you should cut and crimp again the connectors for the proper pinout and pair usage.

Thanks I already went ahead and ordered a T1 RJ48c patch cable.

For future reference you can use regular sraight through CAT5E cable.  The RJ48 uses 2 pair 1-2-4-5 pinouts and since CAT5E uses 4 pair, 1-2-4-5 are covered.   It's very uncommon to see deployments that actually use RJ48 connectors.