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User Manual
7
Chapter 3
Technical Specification
3.1 Up-link sub-card
3.1.1 E1 interface specification
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Standard baud rate: 2048Kbps±50ppm
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Interface coding:
HDB3
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Interface impedance: 75
Ω
(unbalanced), 120
Ω
(balanced)
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Electric features:
comply with ITU-T G.703
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Frame format:
comply with ITU-T G.704
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Jitter:
comply with ITU-T G.823
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E1 connector type: balanced RJ45 connector and unbalanced CC3 female connector
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E1 cable type: SYV 75-2-2 thin coaxial cable is recommended for unbalanced signal
(transmission distance is further than 200m); 0.6mm (22AWG) twisted-pair is recommended
for balanced signal. PCM30 and PCM31 are both available.
3.1.2 Optical interface specification
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Standard rate:
150Mbps
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Interface coding:
Special scrambling code
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Optical connector:
SC type
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Optical connector:
SC type (FC is also available to some dual-strand type)
Type Interface
Wavelength
nm
Tx power
dBmW
Rx sensitivity
dBmW
Saturation
dBmW
Typical range
Km
Attenuation
dB/Km
RC3000-OPT-FE-S1
DSC
1310
-15 ~ -8
-31
-8
0 ~ 25
0.5
RC3000-OPT-FE -S2
DSC
1310
-5 ~ 0
-35
-3
10 ~ 50
0.5
RC3000-OPT-FE -S3
DSC
1550/DFB
-5 ~ 0
-35
-3
15 ~ 120
0.25
RC3000-OPT-FE -SS13 SC/PC T1310/R1550 -15 ~ -8
-31
-8
0 ~ 25
0.5
RC3000-OPT-FE -SS15 SC/PC T1550/R1310 -15 ~ -8
-31
-8
0 ~ 25
0.5
RC3000-OPT-FE -SS23 SC/PC T1310/R1550
-5 ~ 0
-35
-3
10 ~ 50
0.5
RC3000-OPT-FE -SS25 SC/PC T1550/R1310
-5 ~ 0
-35
-3
10 ~ 50
0.5
3.1.3 Ethernet interface specification
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RJ-45 interface of UTP, the longest transmission distance of CAT-5 cable is 100m.
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Comply with IEEE 802.3, 10/100M auto-negotiation, full/half duplex auto-negotiation.
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Support IEEE 802.1d Spanning Tree relay, IEEE 802.1q VLAN packet relay
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Maximum Ethernet frame size is 1916 bytes
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Support flow control of IEEE 802.3x in full duplex
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Support flow control of backpressure in half duplex
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AUTO-MDI/MDIX