Nera Evolution XPAND - 6.3. Transmission Interfaces

NGP\00329 Rev. C 23-06-2006 Evolution Series - XPAND 37
6.3. Transmission Interfaces
6.3.1. Interface characteristics 1.5 Mbit/s
Electrical interface according to ANSI T1.102-1993 and ITU-T Rec. G.703:
Bitrate: 1.544 Mbit/s ± 32 ppm
Line code: B8ZS
Impedance: 100 Ω balanced.
Line Build Out [feet]: 0-133, 133-266, 266-399,
399-533, & 533-655
Connector type wayside: RJ-45/RJ48C
Connector type tributaries: 50 pin multiconnector
6.3.2. Interface characteristics 2 Mbit/s
Interface parameters according to ITU-T Rec. G.703:
Bitrate: 2.048 Mbit/s ± 50 ppm
Line code: HDB3
Impedance: 120 Ω balanced
Maximum attenuation of input signal at 1.024 MHz: 6 dB
Connector type wayside: RJ-45/RJ48C
Connector type tributaries: 50 pin multiconnector
6.3.3. Interface characteristics 155 Mbit/s electrical
Electrical interface according to ITU-T Rec. G.703:
Bitrate: 155.520 Mbit/s ± 20 ppm
Line code: CMI
Impedance: 75 Ω unbalanced
Maximum attenuation of input signal at 78 MHz: 12.7 dB
Connector type: DIN47297, 1.0/2.3mm, dual (IEC 60169-29)
6.3.4. Interface characteristics 155 Mbit/s optical - Intermediate Reach
Optical interface based on single mode fibre (G.652 – single mode).
According to ITU-T Rec. G.957; S-1.1 and ANSI: T1.105.06; IR-1
Approximate reach: 15 km
Bitrate: 155.520 Mbit/s ± 20 ppm
Operating wavelength range: 1261 - 1360 nm
Source type: MLM
Mean launched power: - Maximum: -8 dBm
- Minimum: -15 dBm
Minimum receiver sensitivity (BER < 10
-10
): -28 dBm
Minimum receiver overload: -8 dBm
Connector type: LC Duplex