采用这种结构，两个数据模块和两个 UR–RS422 通道的对时来自于同一个时钟源。如下图所示，两个 UR–RS422 信道经过数据模块 1 上的发送定时而实现数据的同步采样。如果无法使用终端对时特性或不希望采用这种类型的连接，也可选择无计时限制的 G.703 接口。
OPTO 22 PB16AH MOUNTING RACK W/ BRAIN & 8 INPUTS
ALLEN BRADLEY 1494F-R622 FIXED-DEPTH FLANGE-MOUNTED DIS
FANUC EE-0833-111-005 C1M2 CABLE,
SIEMENS V23465-H0500 ENCODER, NNB
JACOBY-TARBOX 1″ 805S SFI FULL VIEW SIGHT FLOW INDICATO
RELIANCE 612298-B CONNECTOR FOR FEMALE RESOLVER, LOT OF
ALLEN BRADLEY 700DC-N400Z24 TYPE N CONTROL RELAY, NIB
CUTLER HAMMER D26MR22A, TYPE M RELAY, 120 VAC, 60 HZ, P
LEESON CM31P17NZ1GA GEAR MOTOR, 1/15 HP, .9/.45 AMPS, 1
LEESON M1125083.00 1/15 HP, FR31, TORQUE 24, PHASE1, 50
MILLER 180433 TRIGGER ASSEMBLY CORD, LOT OF 19,
NORDSON 060-6925-01 TRANSDUCER, SEALED
SWITCHING POWER INC. SPXL-750Q-P 115-240 VAC POWER SUPP
REXROTH R185321310 RUNNER BLOCK/ROLLER RAIL, NIB
ACTION PAK 4300-1521-S SIGNAL CONDITIONER RELAY MODULE
SIEMENS 13820-1X / M923224B132-03 TRANSDUCER, 5P MALE C
