User Manual
Modular Multi-service Integrated Optical Transmission Multiplexer
7
IV. Technical Specifications
§4.1 Electrical Interface
4E1 Interface Card:
(Each card contains 4 E1 Interfaces: 4xE1)
Interface Bit Rate
2.048 Mbit/s
± 50 ppm
Impedance
75
Ω unbalanced / 120Ω balanced
Interface Code Type
HDB3
Max. Input Port Frequency
Bias
Positive frequency bias 100 ppm
Negative frequency bias -61ppm
Max. Input Port
Attenuation
≥ 6dB
Allowable Input Port Jitter
18kHz
≥ 0.2UI
100kHz
≥ 0.2UI
Max. Output Jitter
LF limit f1~f4 < 0.25UI
HF limit f3~f4 < 0.05UI
Jitter Shifting Property
400Hz < 0.1UI
Reflecting Attenuation
51.2kHz~102.4kHz
≥ 12dB
102.4kHz~2048kHz
≥ 18dB
2048kHz~3072kHz
≥ 14dB
V.35 Interface Card: (Each card contains two V.35 interfaces)
Interface Bit Rate: 2.048Mbit/s
Interface Electric Level: In compliance with CCITT V.35 standard
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Front View of V. 35 Connector