Siemens 6ES5705-0AF00 Connection Cable

Technical Specifications and Cable Design

This connection cable links SIMATIC S5 expansion racks to the central controller. The Siemens 6ES5705-0AF00 carries power and communication signals between multiple chassis. You can use this cable for distances up to 10 meters between racks. Its shielded construction protects against electrical noise from motors and drives. The cable weighs approximately 0.45 kilograms per meter. Its overall length measures exactly 5 meters from end to end.

Parameter	Specification
Brand	Siemens
Model	6ES5705-0AF00
Category	Connection Cable / Expansion Bus Cable
Weight (total)	2.25 kg (5 meter length)
Cable Length	5 meters
Cable Diameter	12 mm
Number of Conductors	20 cores (0.25 mm² each)
Connector Type (End 1)	20-pin DIN 41612 (male)
Connector Type (End 2)	20-pin DIN 41612 (male)
Shielding Type	Braided copper (85% coverage)
Outer Jacket Material	PVC (gray, flame-retardant)
Rated Voltage	60V DC maximum
Rated Current per Core	1 Amp
Insulation Resistance	> 100 MΩ
Operating Temperature	-20°C to +70°C
Energy Storage	None (passive component)
Component Count	1 cable, 2 connectors, 2 strain relief boots

Signal Transmission and Shielding

The cable transmits parallel bus signals between the master and expansion racks. Each of the 20 cores carries data, address, or control signals individually. The Siemens 6ES5705-0AF00 uses twisted pairs for critical signals like clock and strobe. This twisting reduces crosstalk between adjacent conductors significantly. The braided copper shield surrounds all 20 cores completely. This shield connects to ground through both connector housings. Consequently, the cable rejects electromagnetic interference from nearby power cables. You must not exceed the 10-meter maximum length for reliable communication.

Connector Design and Strain Relief

Both ends terminate with a 20-pin DIN 41612 male connector. This connector type matches the interface module’s female receptacle perfectly. The Siemens 6ES5705-0AF00 includes molded strain relief boots at both ends. These boots prevent wire breakage from repeated bending or pulling. The connector housings use a metal shell for additional shielding effectiveness. A locking latch secures each connector to the interface module firmly. You must press the latch to release the connector during removal. The connectors carry no active electronics or configuration settings.

Installation and Routing Guidelines

You must route this cable away from high-voltage power lines and motor feeders. Maintain at least 20 cm separation from 400V AC cables at all times. The Siemens 6ES5705-0AF00 requires no special tools for installation. You simply plug both ends into the appropriate interface modules. The cable has no polarity or directional restrictions for operation. You should secure the cable using plastic cable ties every 50 cm. Excess cable length should form a loop, not tight coils. The cable is not suitable for continuous flexing or robotic applications.