12d12h(Apr 08, 2026 07:21 PM UTC)
$2.00 USD
Bid IncrementOnline Auction
Location:
Muscatine, Iowa, USASubject to an auto-extension of the auction end time.
Possible Bad Bid
WATCHERS: 1 |VISITORS: 10
Seller's Terms & Conditions
Seller's Other Items
| Manufacturer | Simplex |
| Model | 5120-9151/688-202 |
| Condition | New/Unused |
| Lot Number | 31241-48 |
The Simplex 5120-9151 Graphic I/O Board (also referenced as 688-202 in some legacy listings) is a versatile interface module from the Simplex 5100/5120 Series TrueCom Building Communications System.
This board provides 72 configurable I/O points (inputs and outputs) for seamless integration with custom graphic annunciators, LED displays, push-button controls, and similar equipment. It enables visual call tracking, direct station selection, emergency paging, zone activation, and other system functions in intercom, paging, and administrative communication setups.
Key features include:
Outputs capable of driving LEDs (up to 15 mA at 5 VDC) for status indication (e.g., flashing for incoming calls, steady when connected).
Inputs for monitoring normally open contacts or switches.
8 additional Form C relay outputs (0.5 A at 24 VDC) for auxiliary control, such as camera interlock or door functions.
Photos show actual item and condition. In original box
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