Table of Contents
Advertisement
User manual Rev 1.3
2.7. Cable requirements
Equipment
Digital keysets
Single line station
Add-on modules
Door phone
2.8. Power supply requirements
220-240VAC, 50Hz input voltage is required for power supply of the key
telephone system. In case of input voltage significant drop, the system
immediately switches to backup power supply, 24VDC. To supply 24 VDC, use
four 6V or 12V batteries connected in series, with battery capacity of 6 ~ 40
ampere-hours.
2.9. Key telephone parameters
Key telephone system are advanced, user-friendly digital keysets, offering the
convenience of 3 soft buttons and a navigation key.
Features:
-.Trendy and Stylish LDP Family design
-.Multi Level 3 Line LCD (3 x 24)
-.24 Flexible buttons with dual-color LED's
-.Call Log Feature
-.Wall Mountable (Bracket Optional)
Cable
2 twisted pairs
1 twisted pair
1 twisted pair
2 twisted pairs
7
AWG
24 (0,22 mm2)
24 (0,22 mm2)
24 (0,22 mm2)
24 (0,22 mm2)
Max distance
400 m
1 km
400 m
100 m
Advertisement
Table of Contents
