因此，当数据传输时，串行线中的 RTS 将只激活接口 2（定义为 2-线或 4-线双工模式）。点对点双工模式，传输设备总使能。因此，点对点 双工模式中，串行线中的 RTS 将总反映写接口控制 COMMREQ 选则的内容。
函数返回接收的字符数和仍在输入缓冲器内没有处理的数
TIMKEN FIFNIR BSBU17D60H SUPER PRECISION BEARING, NIB
DAYKIN PSD4862425-4E, POWER SUPPLY ENCLOSED, 24 VDC, 3
FANUC A20B-2000-0360/?03B TEACH PENDANT CONTROL PCB, NNB
ALLEN BRADLEY 836-C3AX171 SERIES A PRESSURE CONTROL, NI
ALLEN BRADLEY SP-140150 BOARD, SEALED, NIB
GRACO 241479 PRECISION SWIRL MOTOR ASSEMBLY,
HALDEX HYDRAULICS G1204C3A300N00 APPROX 1/2″ SHAFT HYDR
SENTREX CLT-0250-GTB 120/480 VOLTS POWER CONDITIONER W/
ABB EH 370 420 Amp WELDING CONTACTOR
FANUC A660-4001-T963 / L9R003 9 M RC SERIES TEACH PENDA
BRADY HANDIMARK PORTABLE LABEL MAKER
CUTLER-HAMMER DH324NGK 200 AMP HEAVY DUTY SAFETY SWITCH
YASKAWA CACR-SR03TZ0SMY?01A ServoPack SERVO CONTROLLER
SCHNEIDER 170 AAI 520 40 I/O BASE ANALOG 4CH RTD NIB
FANUC A06B-0522-B042#?7000 AC SERVO MOTOR
GENERAL ELECTRIC Type EJ0-1 Model 9F62 KED300 Size DDDD
PARKER ETB50-B05PA90-F?FA450-AI8 ELECTROMECANICA?L CYLIND
RUSSELLSTOL THOMAS & BETTS CFCSRA13-60 INDUSTRIAL INTER
ALLEN BRADLEY 2711-K3A10L1 Series A Revision C FRN 4
