User guide

45 Mbps Backhaul User Guide
Issue 3, December 2004 Page 83 of 113
Ethernet Bridging
Protocol
IEEE802.1; IEEE802.1p; IEEE802.3
compatible
Interface
10/100BaseT (RJ-45), Supports MDI/MDIX
Auto Crossover
Data Rate
12
0 – 5 km Mode
(Single direction – Symmetric TDD (1:1))
BPSK 1/2 1.60 Mbps
QPSK 1/2 3.20 Mbps
QPSK 2/3 4.27 Mbps
16QAM 1/2 6.40 Mbps
16QAM 3/4 9.60 Mbps
64QAM 2/3 12.81 Mbps
64QAM 3/4 14.41 Mbps
64QAM 7/8 16.81 Mbps
Data Rate
12
0 – 5 km Mode
(Single direction – Asymmetric TDD (2:1))
BPSK 1/2 2.07 Mbps
QPSK 1/2 4.13 Mbps
QPSK 2/3 5.51 Mbps
16QAM 1/2 8.26 Mbps
16QAM 3/4 12.39 Mbps
64QAM 2/3 16.53 Mbps
64QAM 3/4 18.59 Mbps
64QAM 7/8 21.69 Mbps
Data Rate
12
0 – 40 km Mode
(Single direction – Symmetric TDD (1:1))
Reduces by 6.40%
Data Rate
12
0 – 40 km Mode
(Single direction – Asymmetric TDD (2:1))
Reduces by 8.11%
Data Rate
12
0 – 130 km Mode
(Single direction – Symmetric TDD (1:1))
Reduces by 19.63%
Data Rate
12
0 – 130 km Mode
(Single direction – Asymmetric TDD (2:1))
Reduces by 23.97%
Note: Practical Ethernet rates will depend on network configuration, higher layer
protocols and platforms used.
Physical
Dimensions
Width 14.5” (370mm), Height 14.5” (370mm), Depth 3.75” (95mm)
Weight
12.1 lbs (5.5 Kg) including bracket
12
ARQ disable – (Enabling ARQ drops the rate ~ 0.13%)