B&B Electronics RS-232/422/485 Serial Card CE 3PXCC4A 用户手册
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Manual Document# 3PXCC4A3001
B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104
B&B Electronics Ltd – Westlink Comm. Pk – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445
Figure 1. Silk Screen Plot of 3PXCC4A PCB