Keithley SSIO-24 24-Channel Solid-State I/O Module Board
Keithley Digital Input Board. Channels: ** 24, Voltage: ** 4000V rms.
- Model
- Keithley SSIO-24
- Calibration
- Available on request
- Price
- $425
- Status
- In stock
- RFQ ref
- SSIO-24
This unit
The Keithley SSIO-24 is a 24-channel solid-state I/O module accessory board that interfaces digital signals in automated test and measurement systems. It has high-speed switching with 4000V rms isolation, enabling precise control and monitoring of AC and DC loads across industrial automation, data logging, and system test applications. The board accommodates four color-coded module types
DC input, DC output, AC input, and AC output - each optimized for specific voltage and current ranges. A 37-position D-Sub connector integrates with host test systems, while onboard LEDs provide real-time I/O status indication.
Technical Specifications
Model: SSIO-24
Channels: 24
Termination: Screw-in terminal blocks accepting 22–12 AWG wire
Interface Connector: 37-position D-Sub
Dimensions: 16" × 4.25"
Isolation Voltage: 4000V rms
I/O Module Options DC Input (White)
Senses AC or DC voltage, outputs 0 or +5V logic signal DC Output (Red)
SM-ODC5: 3–60V DC, 3.0A max load current
SM-ODC5A: 3–250V DC, 1.0A max load current
Response time: 100 µs (on), 750 µs (off) AC Input (Yellow)
SM-IAC5: 90–140V AC/DC input
SM-IAC5A: 180–280V AC/DC input AC Output (Black)
SM-OAC5: 12–140V AC, 3.5A max load current (SM-OAC5R variant for reactive loads, power factor ≤ 0.5)
SM-OAC5A: 24–280V AC, 3.5A max load current
Response time: 0.5 cycle (on/off)
Key Features
Miniature solid-state relay modules eliminate mechanical switching wear
Color-coded module types simplify field identification and replacement
Modular architecture supports mixed-mode I/O configurations
LED status indication for each channel
Operating temperature range: –30°C to +80°C
Storage temperature range: –40°C to +100°C
Complies with EN61010-1/IEC 1010 and EU Directive 89/336/EEC
Power Requirements External power supply required. Current consumption: 180 mA max./115 mA typical (no modules installed); 610 mA max./270 mA typical (with modules installed).
Typical Applications Industrial control systems, automated test equipment, sensor-based data acquisition, switchable load management, and system validation in manufacturing environments.
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | DC Input/Output: 3–250V DC, up to 3.0A |
| AC Input | 90–280V AC |
| AC Output | 12–280V AC, up to 3.5A |
Keithley SSIO-24 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley SSIO-24. Calibration covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Keithley SSIO-24 faults: ESD-damaged input protection, failed driver ICs, connector pin damage. Most failures involve ESD-damaged input protection circuitry, failed logic driver ICs, or mechanical connector pin damage. Board-level component replacement is standard practice.
Keithley SSIO-24 price
This Keithley SSIO-24 is listed at $425. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley SSIO-24 calibration cost
NIST-traceable calibration for the Keithley SSIO-24 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers per-channel threshold accuracy, input leakage current, logic level high/low margins, and signal timing verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →
