# 4091A Symmetricom Distribution Amplifier Used

**Features:**

-   1-20 MHz Operation
-   Eight Signal Outputs
-   Manual Override
-   Redundant HOT SWAP Power Supplies
-   Remote Control via Ethernet

The 4091A is a 1U rackmount fault sense switch that accepts two RF inputs and produces eight outputs (chosen from the two inputs). The unit comes standard with a single HOT SWAP AC power supply and can be configured with redundant HOT SWAP AC or DC power supplies. It has LED indicators that display the selected input as well as a control switch that is used to manually operate the switch or place the switch in “auto” mode. When in “auto” mode, the unit automatically switches upon failure of the selected input. In addition to front panel control, the unit can be controlled remotely via the Ethernet port on the rear of the unit.

## Details

- **Price:** 0.0 USD
- **Vendor:** Symmetricom
- **Type:** Dist Amp
- **Tags:** Amplifier, Distribution, Manufacturers, Other Equipment, product_manual_group_3, Product_used, Symmetricom

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

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> Source: [ValueTronics](https://valuetronics.com/products/4091a-symmetricom-distribution-amplifier-used)
> Updated: 2026-05-21