The Keithley 7011-S is a Quad 1×10 Multiplexer Switch Card engineered for integration with Keithley 7001 and 7002 Switch Mainframes. It delivers flexible signal routing through four independent 1×10 2-pole multiplexer banks, configurable as 2-, 4-, or 8-pole units. Banks combine for expanded topologies: dual 1×20, 1×10 with 1×30, single 1×40, or dual 7011-S cards for a 1×80 multiplexer via backplane interconnection.
## Technical Specifications
**Multiplexer Architecture**
• Four independent 1×10 2-pole banks (Form A: Hi, Lo contacts)
• 40 total 2-pole channels per card
• Configurable pole widths: 2, 4, or 8 poles per bank
• Bank isolation via jumper selection
• Actuation time: 3 ms
• Relay drive current: 16 mA per relay
**Electrical Performance**
• DC signals: 110 V DC, 1 A switched, 30 VA (resistive load)
• AC signals: 125 V rms / 175 V peak, 1 A switched, 60 VA (resistive load)
• Common mode voltage: 175 V peak (any pin to chassis)
• Contact potential: <500 nV per channel contact pair
• Offset current: <100 pA
• Channel resistance: 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, 10⁹ Ω, <600 pF
• Crosstalk @ 1 MHz, 50 Ω load: <–40 dB (bank and channel)
• Insertion loss (50 Ω source/load): <0.1 dB below 1 MHz, <3 dB below 2 MHz
**Contact Reliability**
• Cold switching life: 10⁸ closures
• Life at maximum signal levels: 10⁵ closures
## Key Features
• Screw terminal interface (#16 AWG maximum, 0.092 inch O.D.)
• Supports #22 AWG typical (88 conductors per card max)
• Expandable via 7001/7002 backplane architecture
• Bank jumper configuration for flexible isolation
## Compatibility & Integration
Designed exclusively for Keithley 7001 and 7002 Switch Mainframes with backplane connectivity for multi-card expansion.
