Service board and communication device

A service board comprising:

• a first printed board,
• at least one chip, and
• at least one optical cage layer, wherein:
• the at least one chip is disposed on the first printed board, each optical cage layer comprises a plurality of optical cages, each of the optical cages has an opening facing a panel side, and the opening is configured for insertion of one optical module;
• the service board further comprises a flexible board, each of the optical cages comprises a housing and a plurality of signal pins, one end of the flexible board is electrically connected to ends of the plurality of signal pins, another end of the flexible board is electrically connected to the at least one chip, and the ends of the plurality of signal pins are away from the opening of each of the optical cages;
• the ends of the plurality of signal pins all extend from an end of the housing, and each of the ends of the plurality of signal pins is a first bump structure;
• and
• the flexible board has a connection part, a first surface of the connection part faces the end of the housing, a plurality of second bump structures are disposed on a plate surface of the connection part, the plurality of second bump structures are in contact with corresponding ends of the plurality of signal pins so that an electrical connection is implemented.

A communication device comprising:

• a body;
• and
• a service board comprising a first printed board, at least one chip, and at least one optical cage layer, wherein:
• the at least one chip is disposed on the first printed board, each optical cage layer comprises a plurality of optical cages, each of the optical cages has an opening facing a panel side, and the opening is configured for insertion of one optical module;
• the service board further comprises a flexible board, each of the optical cages comprises a housing and a plurality of signal pins, one end of the flexible board is electrically connected to ends of the plurality of signal pins, another end of the flexible board is electrically connected to the at least one chip, and the ends of the plurality of signal pins are away from the opening of each of the optical cages, wherein the ends of the plurality of signal pins all extend from an end of the housing, the plurality of signal pins comprise a first signal pin array and a second signal pin array, the first signal pin array is configured to send a signal to the chip, and the second signal pin array is configured to receive another signal from the chip;
• and
• the body has a slot, and the service board is inserted into the slot.