NEC DSX-34 Component Manual page 36

Specifications
Power Supply:
Output Power:
Input Current:
VA:
Kwh:
BTU:
Grounding Requirements:
Keyset Voltages
DC voltage measured at the MDF (between tip
and ring)
Minimum operating DC voltage measured at
station jack (between tip and ring)
Analog Station (SLIU) Card Single Line Telephone Voltages
DC voltage measured at the MDF (between tip
and ring)
Ringing voltage
High Voltage Message Waiting
FSK Message Waiting
REN (Ringer Equivalence) Per Port
Total REN (Ringer Equivalence Number) per
system
Simultaneous Ringing
Line Voltages
Ringing voltage
Battery (from telco)
Output Impedance:
Output Level:
30 ◆ Specifications and Parts
DSX-40 Electrical Specifications
120 VAC + 10% @ 50-60 Hz
83 Watts @ 100% full load
1.1A
132 VA
0.132 KwH
450 Btu
12 AWG copper wire
Telephone and Line Voltages
Minimum: 36 VDC
Maximum: 44 VDC
24 VDC
On-Hook Idle State Minimum: 44 VDC
On-Hook Idle State Maximum: 56 VDC
Off-Hook Active State: 7.5 VDC typical,
depending on the telephone type and loop length.
50-65 VAC, sinusoidal (sine wave)
DSX-80/160: 95 VDC, DSX-40: Not available
Available
5
10
Ringing cycles through the ports, ringing four
ports at a time.
42-103 VAC @ 20 Hz
44-56 VDC
External Paging
600 Ohm
0 dBr @ 1.0 KHz
DSX Component Guide