The BT-5 is a Direct Paging Interface which enables staff to make public address announcements from the comfort of their own desk telephone.
The free-standing unit acts as an interface between the analogue telephone system and the PA.
Both the BT-5 & BT-8 free standing units allow staff to dial into the Public Address (PA) system from their desk. The BT-5 & BT-8 act as a network between the telephone system and the PA and allows each individual with the opportunity to contact other members of staff or to make general announcements. This avoids contact to a busy reception/switchboard with a request to put a call out.
To Install the units, simply connect to a PA amplifier and an available telephone extension socket (BT5) or a building’s telephone exchange (BT8). A paging announcement is available by simply dialling into the unit’s extension.
| Description | BT-5 |
|---|---|
| Ring voltage | 11v @ 50Hz |
| REN value | 1.0 |
| Mic output level | 5mv @ 22Ω |
| Line output level | 0dBM @ 600Ω |
| Engaged tone | 600Hz, 250ms on - 250ms off, -13dBM |
| Acknowledge tone | 600Hz, 2 sec @ -13dBM |
| Tone level to line | -13dBM |
| Min line level to hold | 30mA |
| Time out delay | Normal 28 sec - engaged/busy 8 sec |
| Voice operated switch | Absence of caller speaking |
| Amplifier access output | 1 x NPN open collector 40v @ 100mA max |
| Amplifier busy input | connects to 0v via amp busy |
| Supply input | 220-240v, 50Hz |
| Fuse protection | 50mA (F), 250mA (T) |
| Dimensions | 122(H) x 270(W) x 70(D) |
| Weight (Net) | 2.00kg |
| Weight (Gross) | 2.30kg |
CIE-Group Ltd
3 Widdowson Close
Blenheim Ind. Est.
Bulwell
Nottingham NG6 8WB
UK








