Specifications

OfficeServ 7200 General Description Guide CHAPTER 3. OfficeServ 7200 Specifications
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2.2 Transmission Characteristics
y Attenuation
− Attenuation between subscribers : Less than 6 dB
− Attenuation between subscriber and local trunk line : Less than 0.5 dB
y Characteristic resistance of the line : 600 Ω
y Weighted noise : Less than -65 dBm
y Crosstalk attenuation : Less than -68 dBm
y Frequency band : 300~3400 Hz
y Insulation resistance : More than 1 MΩ
2.3 Line Conditions
y Length for installation:
− Analogue phones : Up to 1 km (when #24 AWG (0.51mm) cable is used)
− Digital phones : Up to 400 m (when #24 AWG (0.51mm) cable is used)
− Door phones : Up to 400 m (when #24 AWG (0.51mm) cable is used)
− AOMs : Up to 400 m (when #24 AWG (0.51mm) cable is used)
y Leakage resistance between lines : More than 20 kΩ
y Leakage resistance between grounds : More than 20 kΩ
3 Power Specifications
3.1 Power Supply Module
This module operates using the system AC input power or battery power and sup-
plies the system chassis with backup power of -48 V, -5 V, +5 V, +3.3 V, +12 V, or
-56 V.
Table 3.15 Specification of the Power Supply Module
Category Power Specifications
Input condition AC 110 V/220 V
Output condition 48 V DC, 2.2 A
+5 V DC, 8.0 A
-5 V DC, 1.0 A
+3.3 V DC, 10 A
+12 V DC, 0.4 A
-56 V Back-up 0.4 A
Max power consumption 252 W