Siemens 6ES5762-1AA12 Bus Connector

Module Overview

This bus connector terminates and links SIMATIC S5 backplane bus segments. You can install Siemens 6ES5762-1AA12 directly into the end slot of any S5 rack. The unit provides proper bus termination for reliable data transmission. It connects multiple rack segments into a unified backplane system.

Technical Specifications

Parameter	Value
Dimensions (W x H x D)	250 mm x 25 mm x 130 mm
Weight	0.18 kg
Number of connectors	1 x backplane input, 1 x backplane output
Termination type	Active (voltage-biased)
Termination resistor	220 Ω pull-up, 220 Ω pull-down, 39 Ω bias
Compatible racks	All SIMATIC S5 rack types
Signal isolation	None (direct passthrough)
Status indicators	None (passive termination)
Maximum bus length	16.5 meters total (backplane segments)
Insertion cycles	500 minimum
Interface type	S5 backplane connector (male/female passthrough)
Total onboard components	12 discrete parts
Energy storage type	No capacitors (passive network only)
Operating temperature	0°C to +60°C

Board Layout and Components

The PCB carries only the termination resistor network and passthrough traces. Three resistors provide the active bus bias for signal stability. Moreover, 12 discrete parts include only these termination components and connector pins. The design contains no capacitors or active electronic devices. Consequently, the module introduces no signal delay or power consumption.

Installation Process

You can mount Siemens 6ES5762-1AA12 into the last slot of any SIMATIC S5 rack. The bus connector routes signals from the incoming backplane to the next rack. Furthermore, you can connect multiple racks in series using this module. A simple metal latch secures the unit firmly within the chassis.

Performance Advantages

This connector provides proper active termination for S5 backplane signals. The 220 Ω and 39 Ω network prevents signal reflections on long bus runs. Therefore, multiple rack configurations communicate without data errors. The passthrough design also allows expansion up to 16.5 meters of total bus length.

Safety and Compliance

Siemens 6ES5762-1AA12 meets CE and RoHS industrial standards. The unit stores no electrical energy that could create shock hazards. Hence, technicians can handle the bus connector safely without any discharge delays.