SIMATIC S7-300 CP 340 Comm Card 6ES7340-1CH02-0AE0
S7-300 CP 340 Comm Card 6ES7340-1CH02-0AE0
SIMATIC S7-300 CP340 Comm. Processor, 1 x RS-422/485
S7-300 CP 340 Communication Processor Module with 1 x 19.2 Kbit/s RS-422/485 Interface (3964 (R)/ASCII), Isolated
https://mall.industry.siemens.com/mall/en/us/Catalog/Product/6ES73401CH020AE0
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