1.3 Specifications
18
Installation Manual
1.3.2
Characteristics
Terminal Equipment Loop Limit
PT
40
Ω
SLT
600
Ω
including set
Doorphone
20
Ω
Minimum Leakage Resistance
15 000
Ω
minimum
Maximum Number of Extension
Instruments per Line
1 PT or SLT in standard connection
1 PT and 1 SLT in parallel connection
Ring Voltage
75 Vrms at 20 Hz/25 Hz depending on the ringing load
Outside (CO) Line Loop Limit
1600
Ω
maximum
Hookswitch Flash/Recall Timing
Range
24 ms–2032 ms
Door Opener Current Limit
30 V DC/125 V AC, 3 A maximum
Paging Terminal Impedance
600
Ω
MOH Terminal Impedance
10 000
Ω