产品型号	货号
GBS20-4DO-R	A2081008
GBS20-8DO-P/HF	A2081010
GBS20-4DO-PH	A2081006
GBS20-16DO-N	A2081016
GBS20-8DO-N	A2081015
GBS20-16DO-P	A2081004
GBS20-8DO-P	A2081003
GBS20-4DO-P	A2081002
GBS20-8DI8DO-P	A2081014
GBS20-8DI-A	A2080011
GBS20-16DI-N	A2080013
GBS20-8DI-N	A2080012
GBS20-16DI-P	A2080004
GBS20-8DI-P	A2080003
GBS20-4DI-P	A2080002