68
and 4 code word interleaving
Link Quality Metrics
ITU-T G.826 link statistics
Sensitivity Threshold
for BER of 10
-8
(RS-encoded with
T=12 error-correcting)
Modulation
Net Date (bps)
Eb/No (dB)
QPSK
1.81
8.8 dB
8PSK
2.72
12.2 dB
16QAM
3.62
12.3 dB
32 QAM
4.53
14.4 dB
64 QAM
5.44
16.9 dB
128 QAM
6.34
19.4 dB
256 QAM
7.24
21.9 dB
DATA INTERFACES
AND FORMATS
Configuration
Customer selectable
•
Ethernet only
•
TDM only
•
Mix of TDM + Ethernet.
Limited to 4x100base-T Ethernet plus 16xE1/T1
Ethernet Interface and
Format
4 ports available for data transport or management
•
10/100baseT full duplex
•
RJ-45 connector
•
IEEE 802.3 compliant
•
Internal layer-2 switch
•
1536 bytes maximum frame size
•
Configurable VLAN-based security, port-based QoS priority and port-
based rate limiting
•
MDI/MDI-X cross-connect with auto-detect
TDM Line Interfaces
and Formats
Customer selectable up to 16xE1/T1
•
E1/T1 full duplex
•
RJ-48, 100 ohm T1 / 120 ohm E1 balanced (75 ohm unbalanced as
an option)
•
ITU-T compliant
Native Ethernet and
Native TDM data transported alongside native Ethernet data.
Summary of Contents for SKYWAY-LM Series
Page 1: ...1 SKYWAY LM SERIES PTP Microwave Radio System User s Guide APRIL 2010 Rev 1 6 PN 1552601 ...
Page 21: ...21 Figure 5 2 The backside of the ODU rectangular waveguide version shown ...
Page 25: ...25 Figure 5 9 Loosened plate Figure 5 10 Rotating the antenna waveguide by 90 degrees ...
Page 50: ...50 Figure 6 19 System Reboot Screen ...
Page 57: ...57 Figure 8 3 Serial Interface Menu Structure ...