This document is a user manual released by NEC Infrontia on October 6, 2004, which introduces the various functions and features of the Topaz telephone system.
The NEC Topaz user manual provides detailed instructions for using and programming the telephone system, including features such as abbreviated dialing, call forwarding, door phone operation, and volume control. It includes a full table of contents and step‑by‑step procedures for each function.
The manual also contains technical specifications, programming indexes, and troubleshooting information for administrators and end users, ensuring proper setup and maintenance of the Topaz system. This manual is written in Chinese.
| Maximum load for door phone relay contacts | 500 mA @ 24 VDC / 250 mA @ 120 VAC |
|---|---|
| Number of abbreviated dialing units supported | 2000 |
| Digits stored per abbreviated dialing unit | 36 |
| Maximum number of door phones supported | 6 |
The system supports up to 2000 abbreviated dialing units.
The relay contacts can handle a maximum load of 500 mA at 24 VDC or 250 mA at 120 VAC.
The system can accommodate up to six door phones.
Each unit can store up to 36 digits.