Constellation®
January 2006
5-4
System Interconnect and Configuration
Four-Wire VF Orderwire Interface
Connector: RJ45
One VF orderwire channel provides two 4-wire VF ports.
Table 5-2: Four-wire VF Orderwire input specifications
VF Port
Input Levels
a
a. Selectable through the Keypad.
Output Levels
a
VF1
0 dBm (default)
-16 dBm
0 dBm (default)
+7 dBm
VF2
0 dBm (default)
+7 dBm
0 dBm (default)
-16 dBm
Table 5-3: Four-wire VF ports performance specifications
a
a. Specifications are for one drop/insert.
Frequency response
300-3400 Hz,
±
1.5 dB
Idle noise C-message
≤
30 dBrnc0
Quantizing noise
≤
56 dBrnc0 at 1004 Hz
Return loss
≥
40 dB (telephone set on-hook)
≥
15 dB (telephone set off-hook when only one
telephone is connected to 2-wire port)
Impedance
600 ohms, balanced
Output level accuracy
±
1.0 dB
Table 5-4: Ringing generator specifications
Load
2 REN
Voltage (rated load)
60 Vrms
Ringing cadence ON
2.3 sec
Ringing cadence OFF
4.7 sec
Summary of Contents for Constellation
Page 1: ...Microwave Digital Radios Constellation Systems Application P N SAI 112874 E09...
Page 2: ......
Page 3: ...CONSTELLATION MICROWAVE RADIO SYSTEM APPLICATION MANUAL PART NO SAI 112874 E09 JANUARY 2006...
Page 4: ...Constellation January 2006...
Page 18: ...Constellation January 2006 xii Preface...
Page 20: ...Constellation January 2006 xiv Preface...
Page 24: ...Constellation January 2006 1 4 General Information...
Page 92: ...Constellation January 2006 6 10 Antenna Coupling Unit ACU...
Page 110: ...Constellation January 2006 7 18 Performance Curves...
Page 124: ...Constellation January 2006 Index 6...
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