The word mpo is an abbreviation of English word. In the integrated wiring product, mpo stands for pre-terminated meaning that high-density mpo fiber patch cord and fiber optic cable are terminated, tested and equipped in the factory, and plug and play at the construction site. Can be configured quickly. MPO products mainly include: MPO pre-terminated fiber optic cable, pre-terminated fiber distribution frame, mpo coupling board, mpo module box, mpo fiber adapter.
What is the polarity of MPO products?
This match between the transmit end (TX) and the receive end (Rx) at both ends of the fiber link is referred to as polarity.
There are four polarities in the polarity of MPO products:
The core arrangement positions of the A-type MPO jumpers are the same, one-to-one correspondence. One end of the positioning button is facing up, and one end of the positioning button is facing down.
The cores of the B-type Mpo jumpers are arranged at opposite ends, and the core 1 of one end of the jumper corresponds to the position 12 of the other end. The positioning keys at both ends are in the same direction.
The pair of cores adjacent to the C-type Mpo jumper are crossed, and the core 1 is at the other end of the core. The one end of the core has the positioning key facing up and the other end of the positioning key is facing downward.
D-type Mpo versatility, the positional correspondence of the core is: 1-6 core corresponds to the odd-numbered core positive sequence (1, 3, 5, 7, 9, 11) at the other end, and the core 7 corresponds to the core 12, the core 8-12 corresponds to the even reverse order of the other end core (10, 8, 6, 4, 2).
The MPO connection principle is: must be connected to the same core connector (12 core with 12 cores, 24 cores with 24 cores, etc.); one male (Male) and one female (Female) are a pair of connections; must be the same type Polished type connections (PC and PC, APC and APC).
The polarity of the MPO connector is managed by the Key (position key), which is defined as: Key Up and Key Down. A pair of MPO connectors are matched by an MPO adapter. There are two types of MPO adapters: Class A is defined as Up/Down (Key Up/Key Down) and Class B is defined as Up Up/Key Up. Fiber polarity can be managed by using a Class A or Class B adapter.
