HP – Agilent – Keysight E1474A VXI C-Size Module

The HP–Agilent–Keysight E1474A is a C-size, 1-slot VXI module delivering six independent 1×4 multiplexers for high-performance RF switching up to 1.3 GHz. Register-based architecture with non-latching relay configuration provides exceptional isolation and low VSWR across video and telecommunications frequency bands. SMB male connectors and 75 Ω characteristic impedance ensure signal integrity in demanding switching matrices.

– Technical Specifications

Module Architecture
• VXI register-based, A16 slave-only configuration
• HP 75000 Series C compatible
• C-size, single-slot form factor
• Six independent switching banks (Bank 0–5)
• 1×4 multiplexer per bank; one active channel per bank to common at any time
• Power-on/reset default: channels 00, 10, 20, 30, 40, 50 connected to respective commons; all others open

RF Performance
• Frequency range: DC to 1.3 GHz
• Characteristic impedance: 75 Ω
• Insertion loss: <0.3 dB @<10 MHz | <0.4 dB @<100 MHz | <0.8 dB @<500 MHz | <1.0 dB @1.3 GHz
• VSWR: <1.05 @<10 MHz | <1.15 @<100 MHz | <1.35 @<500 MHz | ~1.5 @1.3 GHz
• Channel-to-channel crosstalk: <–85 dB @<10 MHz | <–75 dB @<100 MHz | <–60 dB @<500 MHz

Electrical Ratings
• Maximum voltage (center/shield to chassis): 42 V peak
• Maximum current (per channel or common): 1 A DC or AC rms
• Maximum power (per channel or common): ~24 W DC or 24 VA AC
• Power consumption: +5 V ~0.10 A static/dynamic | +12 V ~0.36 A static

– Key Features

• Tree-switched relay topology for high isolation and minimal VSWR
• SCPI command programmability
• Scalable via E1475A (75 Ω) or E1473A (50 Ω) RF expander modules
• Supports up to two expanders per module (18 total 4:1 multiplexer banks)
• SMB male RF connectors

– Typical Applications

• Video and telecommunications RF signal routing
• Multiplexed switching matrices and stubless systems
• High-frequency test and measurement environments

– Compatibility & Integration

Integrates into VXI mainframe systems with command modules such as the E1406. Compatible with HP 75000 Series C VXI architecture.