Keysight (Agilent) 81591B

| Attribute | Value |
|---|---|
| Wavelength Range | 1260 nm to 1360 nm |
| Module Type | Optical Switch Module |
| Number of Ports | 1x2 Optical Switch |
| Insertion Loss | ≤ 1.5 dB |
| Crosstalk | ≥ 55 dB |
| Switching Time | ≤ 5 ms |
| Return Loss | ≥ 50 dB |
| Connector Type | FC/APC |
| Compatible Mainframe | Keysight 8164A/B Lightwave Measurement System |
| Operating Temperature | 0°C to 55°C |
Keysight Technologies 81591B Options:
- 81591B - 009 - Single mode fiber interface (FC/APC – R angled, narrow keying, 9/125 µm SMF)
- 81591B - 062 - Multimode fiber interface (FC/PC straight, 62.5/125 µm MMF)
| Model | 81591B |
|---|
The Keysight (Agilent) 81591B Optical Switch Module is a plug-in for the Lightwave Solution Platform models 8163B, 8164B, and 8166B, ideal for flexible setups in transceiver/receiver testing and complex passive component testing. It supports SMF and MMF 1x2 matrix configurations, featuring low insertion loss, fast <10 ms switching time, and ultra-high repeatability at 0.02 dB over 10,000 cycles.
It enables routing of various optical sources and receivers, supporting high uptime and production throughput while minimizing test uncertainties and costs. Its performance ensures a minimal impact on signal integrity.
Testwall can supply the used Keysight (Agilent) 81591B, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) 81591B.





