The Siemens 6ES7922-3BD01-0AM0 is a pre-assembled front connector MTA (Marshalled Termination Assembly) cable designed specifically for SIMATIC S7-300 PCS7 systems. It connects a 20-pole front connector on the I/O module side to a 25-pole D-SUB socket on the ET200M remote I/O station, with a fixed 3 m round cable length. Rated for 24 V nominal operation with a maximum of 30 V, it handles both analog and digital signal transmission — meaning one cable type covers mixed I/O modules in the same rack without needing separate analog and digital harnesses. The field end terminates in a connector strip; the enclosure side uses screw-type terminals, so panel wiring is secured against vibration in industrial cabinets.
Siemens 6ES7922-3BD01-0AM0 Pre-assembled Front Connector MTA
Siemens SIMATIC S7-300 PCS7 MTA pre-assembled front connector, 20-pole, 3 m round cable, rated 24 V / max 30 V, screw-type terminal on enclosure, connector strip in field.
Specifications
Identification
| Parameter | Value |
|---|---|
| Product designation | Pre-assembled front connector MTA |
| Target system | SIMATIC S7-300 PCS7 MTA |
Connection & Wiring
| Parameter | Value |
|---|---|
| Number of poles | 20; of the front connector |
| Conductor cross-section, rated | 0.5 mm² |
| Electrical connection type, on enclosure | Screw-type terminal |
| Field-side connection type | Connector strip |
Electrical
| Parameter | Value |
|---|---|
| Rated value | 24 V |
| Maximum | 30 V |
I/O & Signal
| Parameter | Value |
|---|---|
| Number of channels | 20 |
| For PLC output card | Yes |
| For PLC input card | Yes |
| Analog signal transmission | Yes |
| Digital signal transmission | Yes |
Mechanical
| Parameter | Value |
|---|---|
| Cable length | 3 m |
| Cable design | Round cable |
| Cable outer diameter | 7.6 mm; bundled single cores |
| Cable sheath material | PVC |
| Cable sheath color | Black |
Environmental
| Parameter | Value |
|---|---|
| Operating temperature range | 0 ... 60 °C |
| Storage temperature range | -30 ... +70 °C |
Product details
Frequently asked questions
What are the key voltage ratings?
Rated 24 V nominal, maximum 30 V. The 24 V is the standard S7-300 backplane signal level; the 30 V ceiling means it can tolerate small surges on the 24 V rail without damage.
What is the cable length and connector type?
Fixed 3 m round cable with a 20-pole front connector on the module end and a 25-pole D-SUB on the ET200M end. The field side terminates in a connector strip; the enclosure side uses screw-type terminals.
Does it support analog signals?
Yes, it is rated for both analog and digital signal transmission, so it works with AI, AO, DI, and DO modules in the S7-300 PCS7 MTA system.
