Download Comtech EF Data Vipersat CDD-564L Product specifications

CDD-562L/564 Demodulator with IP Module
Rear Panel Connector Pinouts
Revision 1
MN/CDD564L.IOM
Table 3-1. Rear Panel External Connections
Connector Type
Connector Group
(Chapter 3 Sect.
Ref.)
Rx IF
(Sect. 3.2)
CDD-562L
(L-Band)
CDD-564
(70/140 MHz)
CDD-564L
(L-Band)
Rx 1 (Rx A on
CDD-564L)
Type ’N’ female
BNC female
Type ’N’ female
Rx 2 (Rx B on
CDD-564L)
Type ’N’ female
BNC female
Type ’N’ female
Rx 3 (Rx C on
CDD-564L)
N/A
BNC female
Type ’N’ female
Rx 4 (Rx D on
CDD-564L)
N/A
BNC female
Type ’N’ female
Function
RF Input
Terrestrial Data
(Sect. 3.3)
10/100 Ethernet
RJ-45 female
Ethernet Traffic and M&C
Utility
(Sect. 3.4)
Remote Control
9-pin Type ‘D’ male
Remote Interface for Factory
Test
Console
RJ-11 female
Async Serial Console Port
AC
See Sect. 3.5.1
DC (Optional)
See Sect. 3.5.2
Ground
#10-32 stud
Power/Ground
(Sect 3.5)
NOTE
3.2
Name
Chassis power
Common Chassis Ground
The European EMC Directive (EN55022, EN50082-1) requires using properly
shielded cables for DATA I/O. These cables must be double-shielded from endto-end, ensuring a continuous ground shield.
Rx IF Connections
CDD-562L/564L: The Rx IF input port connectors on the LBand demodulators are 50Ω ‘N’ female types. Two connectors,
labeled Rx1 and Rx2, are present on the CDD-562L (shown at
left), while four connectors labeled Rx A through Rx D are
provided on the CDD-564L (shown to the right). The return loss
on these ports is typically better than 17 dB, and if the user wishes to connect to a 75Ω system, an
inexpensive ‘N’ to ‘F’ type adapter can be used and is available as an optional accessory. While
there will be a reduction in return loss when doing this, the effect in most systems will be
imperceptible.
There may be DC voltages present on the Type ‘N’ Rx IF connectors, up to a
maximum of 48 volts.
CA UTIO N
CDD-564: The Rx IF Input port connectors are BNC female types, with a
programmable impedance of 50Ω or 75Ω. Four connectors, labeled Rx 1 through Rx 4,
are provided on the CDD-564.
3–2