What this cable is and where it fits
The Siemens 6ES7923-3BF00-0HB0 is a shielded connection cable for the SIMATIC ET200SP HA distributed I/O system. It runs from a 37-pin D-sub connector on the I/O module to bare ends with wire-end sleeves, giving you 32 individually labeled channels for field wiring. At 5 m with 0.14 mm² conductors, it's sized for routing from the ET200SP HA station to a junction box or terminal block in the panel — long enough to reach a nearby marshalling cabinet, short enough to avoid voltage drop on signal-level currents.
Lifecycle reality — NRND, source through surplus
If you are populating a new BOM, Siemens recommends evaluating the current ET200SP HA cable portfolio for a direct functional equivalent. No official successor order code is listed for this specific variant.
What the specs mean for fit
The 37-pin D-sub mates directly to the ET200SP HA interface module's front connector. The bare ends with wire-end sleeves land on a terminal block — strip length and ferrule size match standard 0.14 mm² signal wiring. The 32 labeled channels map one-to-one to the I/O module's channels, so commissioning is just matching numbers on the sleeve to the field device tag. Shielding is continuous from the D-sub shell to the bare end — ground the shield at the D-sub end (panel side) to keep common-mode noise out of the analog or digital input card.