Bàn gọi mở rộng LBB1957/00
The LBB 1957/00 Call Station Keypad is an extension to the LBB 1956/00 Plena Voice Alarm System Call Station that adds seven additional zone-select keys. It has the same stable metal base as the call station. In addition to tabletop use, the special design allows it to be neatly flush-mounted in desktops. Functions Each call station supports six zone selections. Connecting one of these keypads, adds seven zones or zone groups that can be selected. Up to eight keypads can be added to an LBB 1956/00 call station. LEDs on the keypad indicate the active zones. Controls and indicators • Seven zone selection keys • Seven zone selection LEDs • Eight DIP switches Interconnections • Two RJ45 jacks • 24 VDC input • Keypad connector
| Power Supply | |
| Voltage range | 24 VDC supplied by LBB 1956/00 |
| Current consumption | <15 mA |
| Base dimensions | 40 x 100 x 235 mm(1.57 x 3.97 x 9.25 in) |
| Weight | Approx. 1 kg |
| Mounting | Bracket coupled with LBB 1956/00 or other LBB 1957/00 |
| Color | Charcoal with silver |
| Operating temperature | -10 ºC to +45 ºC (14 ºF to +113 ºF) |
| Storage and transport temperature | -40 ºC to +70 ºC (-40 ºF to +158 ºF) |
| Relative humidity | <95% |
