20-Call Master Internal Telephone Type Intercom. The TB-20M is streamline and modernly designed. The master console may be placed on a desk or wall mounted.
Features:
- TB-20-G or 40-G add on selector connects additional TB-SE subs, allowing system expansion
- One or dual master configuration
- TB-AD1 adapter connects TB-M with an IE-IF series audio door station
- Receive and call tone volume control
- Power on and in-use LED's
- Directory card and cover
| TelephoneStuff.com | |
|---|---|
| Product Category | Intercoms |
| Product Number | TB-20M |
| Product Name | Aiphone 20-Call Master Internal Phone Type Intercom |
