Comtech EF Data CDM-840 - Manual (Page 34)

CDM-840 Remote Router Revision 2
Introduction MN-CDM840
1–10
Item Description
VersaFEC CODEC BER
16QAM
(With two adjacent carriers,
each 7 dB higher than the
desired carrier)
For:
BER=10 -5
BER=10 -8
Rate 0.731
16QAM
Guaranteed Eb/No
(typical value in
parentheses):
6.4 dB (6.1 dB)
6.6 dB (6.3 dB)
Rate 0.780 16QAM
Guaranteed Eb/No
(typical value in
parentheses):
7.0 dB (6.7 dB)
7.3 dB (7.0 dB)
Rate 0.829 16QAM
Guaranteed Eb/No
(typical value in
parentheses):
7.5 dB (7.2 dB)
7.8 dB (7.5 dB)
Rate 0.853 16QAM
Guaranteed Eb/No
(typical value in
parentheses):
8.0 dB (7.7 dB)
8.3 dB (8.0 dB)
Monitor Functions Eb/No estimate: 3 to 12 dB with ± 0.5 dB accuracy
Corrected Bit Error Rate: 1E-3 to 1E-9
Frequency offset: ± 32 kHz range,100 Hz resolution
Signal Strength Indicator: 0-60 dB range relative to maximum gain
1.4.3 Standard Assemblies
CEFD Item No. Description Where Installed
PL-0020642 CDM-840 Base AC Chassis Assembly –
PL-0000714 CDM-840 PCB Assembly In CDM-840 chassis
FS-0000030
Cartridge Fuse, 2.5A 250VAC 5x20mm Slow Blo fuse, 213
series
In CDM-840 chassis
1.4.4 Optional Assemblies
CEFD Item No. Description Where Installed
PL-0000881
CDM-840 100-240V AC unit w/24V DC 90W @ 50°C BUC
Power Supply
In CDM-840 chassis
PL-0000883
CDM-840 100-240V AC unit w/48V DC 150W @ 50°C BUC
Power Supply
In CDM-840 chassis
PL-0020644 CDM-840 Base 48V DC Chassis Assembly –
PL-0000974
CDM-840 48V DC unit w/24V DC 90W @ 50°C BUC Power
Supply
In CDM-840 chassis
PL-0000975
CDM-840 48V DC unit w/48V DC 150W @ 50°C BUC Power
Supply
In CDM-840 chassis
KT-0000168 Rear-Mounting Support Bracket (4”) Sides of CDM-840 chassis / rear
of user-supplied mounting rack KT-0000195 Rear-Mounting Support Bracket (10”)
1.4.5 Regulatory Compliance
Entity Description
“CE” as follows:
• EN 30489-1
• EN 55022 Class B (Emissions)
• EN 55024 (Immunity)
• EN 60950 (Safety)
FCC FCC Part 15 Subpart B
RoHS Compliance Yes