Overview
Impassa is a self-contained wireless control panel platform in the 433 MHz family, built for compact residential and light-commercial deployments.
Official source
- Product page: DSC Impassa SCW9055/SCW9057 (ID 1385)
- Manual basis: *Impassa Installation Guide v1.2* and *Impassa User Manual v1.2*
Platform highlights
- Self-contained all-in-one architecture
- 433 MHz wireless ecosystem
- Up to 64 wireless zones
- 2 hardwired zone inputs
- User credentials: 16 user codes plus Master code
- Peripheral support: up to 4 WT5500 keypads and 16 WT4989 wireless keys
Model and communicator variants
| Variant | Communicator module |
|---|---|
| D (e.g. SCW9057D-433) | TL2553G — 3G + Ethernet (primary or backup) |
| G (e.g. SCW9055G-433) | 3G2055 — 3G cellular |
| I (e.g. SCW9055I-433) | TL255 — Ethernet/IP |
SCW9057 difference
SCW9057 adds 2-way audio support for installations that require voice interaction workflows.
FAQs
What is the difference between SCW9055 and SCW9057?
SCW9057 adds 2-way audio support. Core panel architecture and wireless capacity are otherwise similar.
How many zones can I program?
Up to 64 wireless zones plus 2 hardwired zones.
How many user codes are available?
16 user codes plus the Master code.
Which communicator type should I pick?
Match the account requirement and variant family:
- G path examples: TL2553G, 3G2055
- I path example: TL255
Where is the official source page?
Use the product page here: DSC Impassa SCW9055/SCW9057 (ID 1385)
What is the difference between SCW9055 and SCW9057?
SCW9057 adds 2-way audio support. Core panel architecture and wireless capacity are otherwise similar.
How many zones can I program?
Up to 64 wireless zones plus 2 hardwired zones.
How many user codes are available?
16 user codes plus the Master code.
Which communicator type should I pick?
Match the account requirement and variant family: - G path examples: TL2553G, 3G2055 - I path example: TL255
Where is the official source page?
Use the product page here: DSC Impassa SCW9055/SCW9057 (ID 1385) (https://www.dsc.com/index.php?n=products&o=view&id=1385)