Siemens 5551 - Manuals

2 Section 61425020L2-5, Issue 1 61425.020L2-5A • Distinctive metallic DC test signature to identifyeither line unit LT or line unit NT mode ofoperation. • B1 and B2 addressability at the faceplate for alocal loopback, the NT1, and up to six devices inthe network-to-customer direction. • DS0 logic le...

5 Section 61425020L2-5, Issue 1 61425.020L2-5A The ten position rotary Address Select Knob (SW3)determines which downstream network element is to belooped. See Figure 1 for switch location and Table C forsetting descriptions. Selecting the B1/B2 DIP switch (SW4-1) sets the bearerchannel. The NM/PTRN...

7 Section 61425020L2-5, Issue 1 61425.020L2-5A Table D. Specifications l a n g i S t u p t u O / t u p n I e n i L e d o M g n i t a r e p O e t a R a t a D t a m r o F l a n g i S s s o L e n i L e r i w 2 x e l p u D ll u F r e m o t s u c o t e l b il a v a s p b k 4 4 1 ; s p b k 0 6 1 Q 1 B 2 C...