|
|
straight through box access instructions: the straight-through box can connect the coaxial cable (bnc-q9 head) to the front of the straight-through box and connect it out from the rj45 port on the back to play the role of the bnc*4 to rj45*1 interface conversion; or the two twisted-pair wires can be directly connected. box front, one from the back rj45 port contact, play the role of rj48*2 to rj45*1 conversion. through box is divided into front and back the front of the through box is composed of rj48 (ie, the crystal head active line sequence is 1245) mouth and the bnc-q9 female head. each rj48 mouth communicates with a pair of bnc-q9 female heads on the left and right sides. the rj48 port on the front of the through box corresponds to the bnc-q9, and the corresponding relationship is shown in table 1: the rj48 port on the front of the through box communicates with the rj45 port on the back, and the corresponding relationship is shown in table 2: twisted pair access medou device architecture diagram explanation: twisted pair access 2 pairs e1 the signaling link on pbx1 is accessed through line a to rj48 port number 2 on the front of the straight box. line b is connected to rj48 port number 1 on the front of the straight box, and 2 e1 is connected to pcm 1/2 on the back of the box. out, connect to other e1 devices through line c; similarly, the signaling link on pbx2 is connected to rj48 port number 10 on the front of the straight through box through line e, line f is connected to rj48 port number 9 on the front of the straight box, and 2 e1 are from the back of the straight box. pcm9/10 out, connect to other e1 devices through line d; the line sequence requirements for line a, line b, line c and line d are shown in table 3: |