1.4.2
Characteristics
Terminal Equipment Loop Limit •
Minimum Leakage Resistance
Maximum Number of Extension
Instruments per Line
Ring Voltage
Central Office Loop Limit
Hookswitch Flash Timing
Range
Door Opener Current Limit
Paging Terminal Impedance
MOH Terminal Impedance
APT: 40
•
SLT: 600
including set
•
Doorphone: 20
•
CS: 65
15 000
minimum
1 for APT or SLT
2 by Parallel connection of an APT and an SLT
75 Vrms at 20 Hz/25 Hz depending on the Ringing Load
1600
maximum
24 ms to 2032 ms
24 V DC/30 V AC, 1 A maximum
600
10 000
1.4 Specifications
Installation Manual
23