3-18
Cisco ONS 15454 SDH Troubleshooting and Maintenance Guide, R3.3
May 2002
Chapter 3 Card Reference
E1-N-14 Card
Figure 3-10 E1-N-14 block diagram
3.8.3 E1-N-14 Specifications
• E1-N-14 Input
–
Bit Rate: 2.048 MBits/s (Mbps) + 50 ppm
–
Frame Format: unframed, ITU-T G.704 framed
–
Line Code: HDB-3
–
Termination: via FMEC-E1 (for 75Ω unbalanced) or FMEC-DS1/E1 (for 120Ω balanced)
–
Input Impedance: 75Ω unbalanced or 120Ω balanced
–
Cable Loss: 0 to 6 dB at 1024 kHz (for cable length see specification of the cable that you are
using)
–
AIS: ITU-T G.704-compliant
• E1-N-14 Output
–
Bit Rate: 2.048 MBits/s (Mbps) + 50 ppm
–
Frame Format: unframed, ITU-T G.704 framed
–
Line Code: HDB-3
–
Termination: via FMEC-E1 (for 75Ω unbalanced) or FMEC-DS1/E1 (for 120Ω balanced)
–
Output Impedance: 75Ω unbalanced or 120Ω balanced
–
AIS: ITU-T G.704-compliant
–
Pulse Shape: ITU-T G.703 Fig. 15
–
Pulse Amplitude: 2.37 V + 5% zero-peak at 75Ω, 3 V + 5% zero-peak at 120Ω
–
Loopback Modes: Terminal and Facility
• Environmental
14 Line
Interface
Units
FLASH
DRAM
Protection
Relay
Matrix
uP
63117
BTC
ASIC
B
a
c
k
p
l
a
n
e
AU-3 to
14 E1
Mapper
AU-3 / STM-4
Mux/Demux FPGA
Comments to this Manuals