因为扩展有着同安装有CPU的机架更高的通讯速率,当然如果一个机架同cPU机架需要使用的电缆连接距离要求超过50英尺，那么扩展机架将不能正常工作，这样就必须使用远程机架连接方式。距离远的一-个远程机架同CPU机架电缆连接距离的大极限是700英尺(213米)。

TR ELECTRONIC INTERBUS-S 11-27VDC ENCODER CE-65M 110-01

CUTLER-HAMMER H1114 HEATER COIL, LOT OF 33,

ATLAS COPCO 3/8″ DRIVE REVERSING 15-28Nm PISTOL GRIP NU

GE MVR250/VBU/R MULTI-VAPOR LAMP, 250 WATT, LOT OF 16,

FANUC A20B-1007-0440/?02B EMERGENCY STOP PCB BOARD, NNB

MITSUBISHI ELECTRIC 3-PHASE 118V 1.1A 200W AC SERVO MOT

BALLUFF BTL5-P1-M0305-P?-S32 MICROPULSE TRANSDUCER,

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WESTINGHOUSE 200A 600VAC INDUSTRIAL CIRCUIT BREAKER KDB

FORCE CONTROL MB-210U20105 POSISTOP MOTOR BRAKE,

ALLEN BRADLEY 845H-SJDZ13CKY1 SERIES B 5 VDC INCREMENTA

P&H CONTROL FREQUENCY DETECTOR MODULE 79U8D5

P&H CONTROL INSTRUMENT MODULE 79U10D2