This is a user manual of Topaz product by NEC Infrontia Corporation, which contains Abbreviated Dialing, Account Code, Alarm, Alphanumeric Display, Attendant Call Queuing, Automatic Route Selection, Background Music, Barge In, Call Forwarding, Call Forwarding - Fixed, Call Forwarding - Off-Premise, Call Forwarding - Abbreviated Dial, Call Forwarding with Follow Me, Call Forwarding/Do Not Disturb Override, Call Redirect, Call Timer, Call Waiting / Camp On, Callback, Caller-ID, Central Office Calls, Answering, Central Office Calls, Placing, Class of Service, Conference, Conference, Voice Call/Privacy Release, Continued Dialing, Department Calling, Department Step Calling, Dial Number Preview, Dial Pad Confirmation Tone, Dial Tone Detection, Direct Inward Line (DIL), Direct Inward System Access (DISA), Direct Station Selection (DSS) Console etc.
The NEC Topaz telephone system manual provides detailed instructions for using and configuring a wide range of functions such as abbreviated dialing, call forwarding, door phone operation, volume control, and long‑conversation warning tones. It includes programming indexes, key layouts, and step‑by‑step usage guides for each feature.
The document also lists system limits, relay specifications, and the number of supported units for features like door phones and abbreviated dialing. It serves both end users and system administrators who need to set up or modify the telephone system. This manual is written in Chinese.
| Door phone relay contact rating | 500 mA @ 24 VDC / 250 mA @ 120 VAC |
|---|---|
| Maximum number of door phones supported | 6 |
| Abbreviated dialing units available | 2000 |
| Digits stored per abbreviated dialing unit | 36 |
| Public abbreviated dialing numbers | 900 |
The system can accommodate up to six door phones.
The normally‑open contacts are rated for 500 mA at 24 VDC or 250 mA at 120 VAC.
The Topaz system provides 2,000 abbreviated dialing units.
Each unit can store up to 36 digits.