57C554
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57C554 Information: |
Reliance Automax 57C554. Remote I/O Interface Module. Shark Interface Module. (M/N 57C554) The Shark Interface module is a printed circuit board assembly that plugs into the backplane of a Shark rack in the first slot to the right of the power supply. It consists of a circuit board and a faceplate. The faceplate contains tabs at the top and bottom to simplify removing the module from the rack. On the back of the module are two connectors that attach to the system backplane. The faceplate of the module is one 9-pin female D-shell connector labeled \"NETWORK\". This connector allows the module to connect to the Remote I/O Network. The module faceplate contains two green status LEDs. When lit, the top LED, labeled \"CPU OK\" indicated that the module has passed its power-up diagnostics and is operating properly. When lit, the bottom LED, labeled \"COM OK\" indicates that the module is communicating on the Remote I/O Network. When the LED is flashing, it indicates that an invalid drop number has been selected on the rotary switch. The 16-position rotary switch is used to select the Shark rack\'s Remote I/O drop number (1 to 7 or 9 to F). This switch is read only on power-up. If it is necessary to change the rack\'s drop number, you must change the setting of the rotary switch and then cycle power.