---
type: product
schema_version: 1
stock_number: "76473-1"
canonical_url: "https://www.artisantg.com/TestMeasurement/76473-1/Adtran-ISU-512-U-ISDN-Inverse-Multiplexer"
json_url: "https://www.artisantg.com/TestMeasurement/76473-1/Adtran-ISU-512-U-ISDN-Inverse-Multiplexer.json"
generated_at: "2026-11-07T01:20:54.632Z"
last_updated: "2026-04-06T13:32:15.610-05:00"
---

# Adtran ISU 512-U ISDN Inverse Multiplexer

_Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._

## Summary

- Manufacturer: Adtran
- Model: ISU 512-U
- Condition: Used and in Excellent Condition
- Price: $595.00 USD
- Availability: In stock, 1 available
- Warranty: 1-Year Warranty with 30-Day Return Guarantee
- ITAR restricted: No
- Shipping weight: 24 lb
- Shipping dimensions: 32X24X24 in

## Categories

- Test Equipment > Telecom Test > Communications Equipment (primary)

## Details

### Configuration

- Input Voltage: 90-250 VAC
- Interface: U

Part Number: 1202.086L1

## Images

- <https://www.artisantg.com/itemimages/adtran_isu_512_u_view1_202043015134.jpg>
- <https://www.artisantg.com/itemimages/adtran_isu_512_u_view2_202043015134.jpg>
- <https://www.artisantg.com/itemimages/adtran_isu_512_u_view3_202043015134.jpg>
