Chapter 4 - Hardware Structure
Confidential and Proprietary Information of ZTE CORPORATION 43
T
AB LE
8
O
UT P U T
C
HAR ACT E R IS T I CS
Output
Voltage
Nominal Value
(V)
Stability
(%)
Maximum
Working
Current (A)
Maximum
Peak Voltage
(mVpp)
+5 VA(D) +5 0.5 30 100
-5 VA -5 0.5 5 100
-48 V -48 15
Ringing output: 75 ± 15 V AC, 400 mA, distortion < 5%, 25 Hz ± 2 Hz
In case of a load burst, the transient response of the output voltage shall be less than
nominal±5%.
As the input connects or disconnects, the overshoot value of the output voltage shall be less
than nominal±2%.
Ringing current module handles ringing current. They work in hot
backup mode and are switched over automatically. RINGA and RINGB
are ringing ends. RINGA provides ringing for the backplane at the local
layer, and RINGB is connected to a 9-core socket (AMP9) on the
backplane for connecting the ringing interconnection line.
5. Technical Indices
Board circuit: 0.2 A
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