www.raisecom.com User Manual
7
Chapter 3 Technical Specification
3.1 Up-link sub-card
3.1.1 E1 interface specification
¾ Standard baud rate: 2048Kbps±50ppm
¾ Interface coding: HDB3
¾ Interface impedance: 75Ω (unbalanced), 120Ω (balanced)
¾ Electric features: comply with ITU-T G.703
¾ Frame format: comply with ITU-T G.704
¾ Jitter: comply with ITU-T G.823
¾ E1 connector type: balanced RJ45 connector and unbalanced CC3 female connector
¾ 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
¾ Standard rate: 150Mbps
¾ Interface coding: Special scrambling code
¾ Optical connector: SC type
¾ 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
¾ RJ-45 interface of UTP, the longest transmission distance of CAT-5 cable is 100m.
¾ Comply with IEEE 802.3, 10/100M auto-negotiation, full/half duplex auto-negotiation.
¾ Support IEEE 802.1d Spanning Tree relay, IEEE 802.1q VLAN packet relay
¾ Maximum Ethernet frame size is 1916 bytes
¾ Support flow control of IEEE 802.3x in full duplex
¾ Support flow control of backpressure in half duplex
¾ AUTO-MDI/MDIX