Orcad 10.5 License File -

FEATURE OrCAD_PSpice_A/D cdslmd 10.5 31-dec-2025 10 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=CDEF12345678AB The OrCAD 10.5 license file is a classic FLEXlm license.dat — a structured text file combining server binding, vendor daemon configuration, and cryptographically signed feature lines. It reflects a transitional period in EDA licensing, moving from dongles toward network-managed floating licenses. While obsolete today, understanding its anatomy is essential for anyone maintaining legacy design environments or recovering old PCB projects.

FEATURE OrCAD_Capture_CIS cdslmd 10.5 31-dec-2025 10 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=ABCD1234EFGH56

FEATURE OrCAD_Capture cdslmd 10.5 31-dec-2025 10 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" ISSUED=1-jan-2025 SIGN=12AB34CD56EF78

FEATURE OrCAD_PCB_Designer cdslmd 10.5 31-dec-2025 5 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=78EF56AB34CD12 Orcad 10.5 License File

A “full” license file would have all these lines, each with its own seat count and signature. For a single user, a node-locked license.dat looked simpler — no SERVER line, just:

| Type | File Name Example | Purpose | |------|------------------|---------| | | license.dat | Fixed to one computer’s hostname/MAC address | | Floating (network) | license.dat | Served by a license server to many clients | | Evaluation | license_eval.dat | Time-limited, often feature-limited |

FEATURE OrCAD_Capture cdslmd 10.5 15-dec-2025 2 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" ISSUED=1-dec-2024 SIGN=1234567890AB FEATURE OrCAD_PSpice_A/D cdslmd 10

| Symptom | Likely Cause | |---------|---------------| | License request failed. Feature not found. | Wrong LM_LICENSE_FILE path or missing feature line. | | Invalid license key (SIGN mismatch) | Manual edit of license file (e.g., changed date). | | Cannot connect to license server | Firewall blocking port 5280 (or custom port). | | cdslmd: No such file or directory | Wrong path in VENDOR line. | | Hostid does not match | Different MAC or hostname on client vs server. |

FEATURE OrCAD_Signal_Explorer cdslmd 10.5 15-dec-2025 1 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=9876543210FE

| Feature Name | Tool | |--------------|------| | OrCAD_Capture | Capture schematic design | | OrCAD_Capture_CIS | Capture with Component Info System | | OrCAD_PCB_Designer | PCB Editor (Allegro-based) | | OrCAD_Layout | Legacy PCB Layout (pre-Allegro) | | OrCAD_Signal_Explorer | Pre-layout signal integrity | | OrCAD_PSpice_A/D | Analog/mixed-signal simulation | | OrCAD_PSpice_AA | Advanced Analysis (optimizer, Monte Carlo) | | OrCAD_AMS_Simulator | Mixed-signal simulation | | OrCAD_Librarian | Part library tool | FEATURE OrCAD_Capture_CIS cdslmd 10

If you’re dealing with an actual OrCAD 10.5 license file now, focus on checking the SIGN= integrity, verifying LM_LICENSE_FILE , and ensuring the FLEXlm tools are compatible with your OS. For production use, upgrading to a modern Cadence license manager is strongly advised.

# OrCAD 10.5 Floating License File Example # (C) Cadence Design Systems, Inc. SERVER myserver 001122334455 5280 VENDOR cdslmd /opt/OrCAD10.5/bin/cdslmd

LM_LICENSE_FILE = C:\OrCAD\license.dat CDS_LIC_FILE = C:\OrCAD\license.dat CDS_LIC_FILE was Cadence’s override variable. Many admins set both for safety. The license file would contain one or more of these features (product names):

FEATURE OrCAD_PCB_Designer cdslmd 10.5 15-dec-2025 2 DUP_GROUP=UH SUPERSEDE ISSUER="Cadence" SIGN=ABCDEF123456