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Key Features：
High availability
Hot swappable elements
Ease of maintenance
Up to 6 Channel Units (CUs) per chassis
Up to 16 transmit and 16 receive channels per CU
Integrated voice codecs
Common CU hardware and software for all channel types
Redundant Ethernet interface
Built-in dual polarization support
Specification:
Channel Unit Subsystem
Enclosure
19” / 7U PICMG® 2.16, rack mount
Cooling
Front to back
Power supplies
N+1, 115/230V AC or 48V DC
Shelf managers
Dual redundant per PICMG® 2.9
RCMP, CLI, GUI, SNMP interfaces
Alarm dry contact relays
Ethernet switches
Dual redundant 10/100 + 2 x 1G
Channel Units
1 to 6 front / rear card pairs
Maximum channels per CUS
96 Tx + 96 Rx
Channel Unit Functionality
Composite channels
4 Tx/Rx (independently tuneable)
Composite channel bandwidth
500 kHz
Bearer channels per composite channel
4
Operational bearer channel types
P600/1200/10500
R600/1200/10500
T600/1200/10500
C8400/21000
Test bearer types
CW, unframed, random data, random symbols
Voice codecs
4.8 kb/s AMBE for C8400
9.6 kb/s LPC for C21000
Max. data channels per CU
16 P-channel Tx
16 P/R/T-channel Rx
Max. C-channels per CU
8 C-channel Tx/Rx
CHANNEL UNIT INTERFACES
Ethernet interface
10/100/1000baseT
Auto-switching between Switch A, Switch B and front panel
Monitor and control, data
Proprietary over TCP/IP
PCM samples
RTP over UDP
Tx/Rx IF frequency range
50 to 90 MHz
Max. total power per Tx feed
–17 dBm
Max. per-carrier Tx power
–29 dBm
Tx phase noise density
@ 100 Hz: ? –70 dBc/Hz
@ 1 kHz: ? –80 dBc/Hz
@ 10 kHz: ? –90 dBc/Hz
@ 100 kHz: ? –100 dBc/Hz
Tx spurious
< –86 dBm for carrier at –29 dBm
Tx 3rd order intermodulation
< –55 dBc (2 carriers at –20 dBm)
Tx I/Q imbalances
Negligible
Typical Rx dynamic range
–65 to –25 dBm
–10 dBm max total
Reference input
10 MHz
Classic Aero GES Channel Unit Subsystem