每个I/O 模块通过其对应的端子板接收现场信号或向现场传送数据。机架相邻的物理槽位视作同一个逻辑槽位。第一个位置上放置工作模块，第二位置放置热备I/O模块。端子板通过背板顶部的Elco插头相连，同时连接工作和热备的I/O模块。所以，这两个模块接收的是相同的来自端子板的信号。  
I/O总线可使信息在I/O模块和主处理器之间传送，速率为375K波特。三重化I/O总线沿着背板的底部敷设。I/O总线的每一分电路在一个主处理器与其相应的I/O模块上的相应的分电路间传递信息。I/O总线通过一组三条I/O总线缆在各机架间的延伸。 
通讯总线在主处理器和通讯模块之间传输信息，其速率为2 M波特。对机架的电力被分配在两个独立的电源轨上，并分给背板的中心。机架上的各个模块从两条电源轨上通过双重电源调节器同时吸取电力。每一块输入输出板上有四组电源调节器：一组对应一个支路（A、B和C），剩下一组用于状态指示灯。

Siemens Modules U6 Z2006, U7 Z2006

$75.00
Free shipping
Browning Double Gear Belt D1000H100  Surplus

Guardmaster Cadet Safety Switch 44513-0010 Lot of Six U

Toshiba Tosvert Transistor Inverter 130G2/g2+ Mod# 4015

Cutler Hammer Eaton 100 amp Circuit Breaker G3P 22K, 13

Scientific Columbus Proc. Cont Vltge Transducer 4044PAN

Scientific Columbus Proc. Cont Vltge Transducer 3588PAN

Hy-Security Vehicle Detector HY-5A NIB List Price $175.

Lovejoy Hub Set 00090, 00090, 00107  Surplus with Ri

Gates Power Grip GT 32808MGT50 Belt  sSurplus

Allen Bradley Guard Master Safety Module 100S-C12DJ14C

Demag RS Wheel Block 125 B1, 1088 IMS Entry Gauge C Fra

Cutler Hammer Econotran Industrial Control Transber

Channel Select Circuit Board 021-032 140-112-OH ? N

Grinnell WC8201-3 Butterfly Valve 4" Ser 8000 WP 250

Ameridrives International Coupling Hub 23488, 073570-00

Channel Select? Circuit Board 021-0008 140-0081-000E Ne

Omega Pressure Transducer PX182-060GI 60 psig  Surpl

Vickers Flow Meter LOFA 1P 12 3HAC14265-1   Element LEM041052 US

Lem Voltage Module Type LV 100-1500/SP2  Surplus

American Standard Circuit Board 6400-0538-01  T/O

McGill Saddle Back Bearing MB-25K-1 3/4  SURPLUS

Fag Sealmaster Tapered Roller Bearing Cone Cup Set 3021

6" Butterfly Gate Valve Appears to be  - No Box - No

Allen Bradley contactor 500F-COH930, Ser A, Size 2, 600

Siemens Circuit Board 3HAC14265-1  6SC9834-0CF64

Toshiba Power Supply EX10 MPS51, 100-120VAC .50A IN, Us

Red Lion Controls Panel Meter Mod# 65050, 51-650-50/B,

Hammond Power Solutions Industrial Control Transber

Sprocket 713-259 80 Tooth 1" Pitch 1.675" Bore  Surp

Ameridrives International F203.5 HUB, 23489, 073580-000

EGS Industrial Control Transbers T1000, Type SMT, 1.

Dodge? 3 Groove 9" Pulley 3A8.2B8.6-9K 2770 MAX RPM FM

Cutler Hammer Auxilliary 3HAC14265-1  Contact C320KGS42 Series A2 Ne

Schneider Telemecanique Contactor LC1 D65F, TeSys - 043

Rockwell 143-80 Service Regulator Repaired 1.5" Ports

GoodYear Hawk Belt 2000-8M-50  Surplus Compare at $1

Gates PowerGrip 960H200 2218MC Timing Belt  Surplus

Elephant Brake coil P# 562-5, Type SS-1, 0.5 Ton, Ser#

Allen-Bradley Starter 702-DOD93 Series K Size 3  TO

Rexroth Hydraulic Valve 4WE10E31/CW110N9A P/N RR0088008

Toshiba EX10 MDI32 INPUT MODULE S#3Y03369, 24VDC, 

Furnas Overload Relay 48GC38AA4 NICE  T/O

Allen Bradley Overload Relay 193-DPD200 SERB 500A

DE-STA-CO Straight-Line Toggle Clamp 624-SS  Surplus

GWB Entry Side Guide Bearing UJ587.35GWP  SURPLUS

ABB Sprecher & Schuh Starter Panel, CA7-30-00, See Text

McGill Bearing MR 80,  Surplus

GATES Synchro-Power 3HAC14265-1  HTD 1890-14M-55 Belt  Surplus

Texas Instruments 2600785-000,  Circuit Boards, F10

Texas Instruments 2490127-000,  Circuit Boards, F3-

GOODYEAR Hi-Perbance Pd Plus Belt  Surplus

UNITED ELECTRIC PRESSURE SWITCH J120-144 NNB

Joyner Pneumatics Type DUJ-60/100 Cylinder

2 Analog Devices 3B41-03 ISO WB V INPUT Reg.WB ISO Amp.

Goodyear Gear Belt Dual D14408M30  Surplus Compare @

SKF Bearing 6213 NRC3, 3HAC14265-1  6213 NR/C3  Surplus

Rexnord Flexible Coupling 014546, CMA AMR 225 TD NIB BO

Trane Refrigeration Oil 00022, 2.5 Gallons  Surplus

Carrier Carlyle Pulley for 5F30 Compressor  Take Ou

KBZ BEARING F211, KBZ S UC211-32G, 2" Bore, 6 3/8" x 6

Lamp Express Transber 44020 29371 Rebuilt/Repaired

Moore Model 175 L-Only, Pneumatic Low Limit Relay Boost

Double A Hydraulic Valve QF 5M FF 10A3, Assy' 501541 D0

Furnas Bi-bl Overload Relay  3HAC14265-1 Cat# 48DC38AA4  Surpl

Rexroth Valve ZDR6DP2-45/75YM  A125-276

OMRON REMOTE TERMINAL DRT2-OD16, N1875, NICE TAKE-OUT

OMRON REMOTE TERMINAL XWT-OD16 SOURCE 24VDC NICE TAKE-O

Airpax 219-3-28779-69, x13050337-09 32 Amps, 3 pole, 25

Martin Sprocket 100B15 25672 100BS15 15 Tooth 2.75" Bor

Lux Limit Switch APL-310N NIB

Numatics Valve 081RS1000000000 3HAC14265-1  081RS1000000000 W/214-10

P&H Harnischfeger Bi-bl Overload Relay Cat# 479Q40D6

Bettis Pneumatic Valve Actuator RPC1000DA, Part# 118242

Good Year Hawk Belt 1760-8M-50 (04945546) NNB

ALLEN BRADLEY GUARDMASTER EXPANSION RELAY MSR122E SER A

GoodYear Hawk Timing 3HAC14265-1  Belt 1800-8M-50  Surplus Compar

Sprecher Schuh 1-pc. Unit KT$-C2a-C10 Ser A Starter, C1

ABB Miniature Circuit Breaker Trio w/Panel, S203-C20GB1

Carrier Compressor Pulley 5F20 - 1053,  Take Out