Output Modules
AMI 10-Output Module
218
TSG-3800 User’s Guide
12778474-002-2 Revision F – March 2004
Power A and B on the main shelf provide power to the module. These redundant
sources of –48 vDC are diode-coupled and fused, allowing the module to draw
power from either source. The internal fuse labeled F1 protects the circuitry from
excessive current. The DC-to-DC converter changes the negative voltage into +5
vDC; the green POWER indicator on the front panel is lit when either power source
is available to the module. The POWER indicator turns off when power is lost, for
example if the fuse on the module opens, if both –48 vDC power inputs are lost, or if
the converter fails.
Specifications
The functional specifications of the AMI 10-Output module are listed in
Table 7-7
.
Configuring the AMI 10-Output Module
This section describes how to configure the AMI 10-Output module to meet the
requirements of your particular installation.
Table 7-7. AMI 10-Output Module Specifications
Signal Characteristic
Specification (E1)
Specification (T1)
Signal
Alternate Mark Inversion (AMI)
Alternate Mark Inversion (AMI)
Format
Framed, (Set by Frame
Generator)
Framed, (Set by Frame
Generator)
Waveshape
Rise Time
Pulse Width
Pulse Interval
Duty Cycle
Per ITU-T Rec. G.703
<100 ns
<244 ns, nominal
488 ns, nominal
50%
Per ANSI T1.102
<100 ns
<324 ns, nominal
648 ns, nominal
50%
Amplitude
2.2 to 3.3 volts
2.4 to 3.6 volts
Jitter
< 0.03 UI
< 0.03 UI
Drive Capability
Per ITU-T Rec. G.703
0 to 655 feet (197 m), 22AWG
ABAM cable or similar
Termination Impedance
120
Ω
±
5%
100
Ω
±
5%
Number of outputs
10
10
Caution:
To prevent ESD damage to the module, always observe the
precautions described in
Properly Handling the Modules
, on page 61.
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