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![Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"](https://webassets.lqdt1.com/assets/photos/31241/31241_8_d0162090-2703-430f-8acf-fd5741a19c0c.jpg?cb=260319163136&h=480&webp=true "Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"")
![Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"](https://webassets.lqdt1.com/assets/photos/31241/31241_8_d0162090-2703-430f-8acf-fd5741a19c0c.jpg?cb=260319163136&h=96&webp=true "Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"")
![Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"](https://webassets.lqdt1.com/assets/photos/31241/31241_8_f7d3eda2-6228-44bf-8841-62aec064e80d.jpg?cb=260319163137&h=96&webp=true "Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"")
Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"
$10.00 USD
Closes:
12d19h(Apr 08, 2026 06:45 PM UTC)
$2.00 USD
Bid IncrementSales/Lot Type:
Online Auction
Location:
Muscatine, Iowa, USASubject to an auto-extension of the auction end time.
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VISITORS: 6
Seller's Terms & Conditions
Seller's Other Items
Description
| Manufacturer | Simplex |
| Model | 562-856 |
| Condition | New/Unused |
| Lot Number | 31241-8 |
Simplex 562-856 2120 Communication Interface Motherboard BD Class "B"
The Simplex 562-856 Class B Motherboard is a reliable, original equipment replacement part for Simplex fire alarm systems (commonly used in legacy 4100 series panels).
This Class B (Style B) motherboard provides the foundational mounting and interconnection platform for various daughter cards and modules, supporting standard Class B wiring configurations for initiating devices, notification appliances, or communication interfaces without suppression.
It is frequently associated with RS-232/2120 communication setups, enabling integration or bridging of older Simplex 2120 multiplex systems with newer panels (e.g., via dual RS-232/2120 interface modules for hardwired or modem-linked communication).
Photos show actual item and condition.
Q & A
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Seller Information
Item Location:
Account Type:
Government
Inspection
At the seller’s discretion, inspection may be permitted. Inspection is by appointment only. To request inspection, please click the “Ask a question” hyperlink, if available. If you have additional questions, please visit the FAQs
Payment
PAYMENT
If you are the winning bidder, you will facilitate payment by referring to the My Bids section of your account.Note:
1. Payment is due within 5 (five) business days of auction closure.
2. Any invoice $5,000 or above requires payment via wire transfer.
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SALES TAX
When applicable, sales tax is calculated based upon the auction’s advertised location.If you are seeking sales tax exemption, you must complete Liquidity Services’ tax exemption form(s). We recommend doing this prior to the auction’s closure or before making payment. To do so, please visit Liquidity Services' Tax Exemption Submission Tool.
Removal
***SHIPPING IS NOT AVAILABLE***
The buyer is responsible for all aspects of pick-up / removal, including but not limited to packing, loading, transportation and exporting. Note: Shipping is NOT available.
Removal is by appointment only. All items must be picked-up / removed within 10 (ten) business days from auction closure, unless otherwise stated in the asset description. If any item(s) is not removed within the allotted timeframe, the item(s) may be declared abandoned.
At the time of pick-up / removal, you will be required to present the seller with a copy of your Buyer’s Certificate and/or bill of sale, and potentially other documentation (e.g., copy of driver's license, Authorization of Release, etc). When making a removal appointment, please confirm with the seller what is needed to release the item(s).
Special Instructions
NOTICE: If you are the winning bidder and default by failing to adhere to this seller's terms and conditions, your account with Liquidity Services WILL BE LOCKED.
Guaranty Waiver: All property is offered for sale “AS IS, WHERE IS.” (Seller) makes no warranty, guaranty or representation of any kind, expressed or implied, as to the merchantability or fitness for any purpose of the property offered for sale. Please note that upon removal of the property, all sales are final.
Guaranty Waiver: All property is offered for sale “AS IS, WHERE IS.” (Seller) makes no warranty, guaranty or representation of any kind, expressed or implied, as to the merchantability or fitness for any purpose of the property offered for sale. Please note that upon removal of the property, all sales are final.
Additional Information
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