DHS-E Technical Specification Tables 3-9
Table 3-3: Electrical Specifications
Component Description
AC Power source: Dedicated 117V AC (+
10%), 60Hz single
phase
Power consumption: 1.5A max. at 120V AC (180 W)
Power Supply fuse:
AC input
DC output
2A 250V
1A 125V
Idle Channel Noise: -74 dB
Cross Talk Attenuation: 75 dB (at 1kHz)
Ringing Sensitivity: 40v RMS 25 Hz
Ringer Equivalence Number: 1.2B
CO Line Signaling: DTMF amplitude (-5 dB,-7 dB) +- 2 dB, at
approx. 2 Vpp
Pulse Dialing ratio 60/40 at 10 PPS
Music source/Background Music: 0 dBm at 600
Ω
input impedance
1/8 in. phono jack
Contact rating (Option Module LBC): 1A at 24V DC
1/8 in. phono jack
External Page Port 0 dBm at 600
Ω
1/8 in. phono jack
Serial Ports 9-pin female RS-232 C
Table 3-4: Environmental Specifications
Requirements In Operation In Storage
Temperature KSU 32
to 104
o
F
0 to 40
o
C
-40 to 185
o
F
-40 to 85
o
C
Recommended Operating
Temperature:
70 to 78
o
F
Temperature Station Instruments 32 to 113
o
F
0 to 45
o
C
-40 to 185
o
F
-40 to 85
o
C
Relative Humidity (non-condensing) 5 to 90% 5 to 90%
Heat Dissipation (BTU) 300
Altitude Up to 10,000 ft. Up to 40,000 ft.