NEC PASOLINK+ - Interface; Digital Signal Interface

MTD-PL-028/141005 PASOLINK
+
155 MB 1+0/1+1 SYSTEM
- 9 -
4. INTERFACE
The NEC PASOLINK
+
system has the ITU-T standard interface conditions as listed below:
4.1 Digital Signal Interface
1) Main, Traffic, Electrical (STM-1) [Selectable]
•
Type (ITU-T G.703) : In station section, full functionality
•
Bit Rate : 155.520 Mbit/s ±20 ppm
•
Level : 1 Vp-p (nominal)
TX accepts 12.7 dB cable loss at 78 MHz
•
Code Format : CMI
•
Impedance : 75 ohms, unbalanced (nominal)
•
Connector : IEC 169-13
2) Main Traffic, Optical (STM-1) [Selectable]
•
Type (ITU-T G.957) : S-1.1 (Inter-Office)
•
Bit Rate : 155.52 Mbit/s ±20 ppm
•
Level : S-1.1 -8 to -15 dBm (transmit level)
-8 to -28 dBm (receive level)
•
Connector : FC/PC
3) Main Traffic, Optical mono fiber (STM-1) [Selectable]
•
Bit Rate : 155.520 Mbit/s ±20 ppm
•
Transmit Wavelength : A type = 1310 nm
: B type = 1550 nm
•
Receive Wavelength : A type = 1550 nm
: B type = 1310 nm
•
Mean Optical Output Power : -7 dBm (typ.)
•
Minimum Receive Overload Power : -3 dBm
•
Minimum Receive Sensitivity : -23 dBm
•
Connector : FC/PC
4) SOH Termination
l SOH Termination : RST
(Full transparent transmission for SOH at default setting.)
(E1 and F1 byte can be used for DSC.)
5) Main Traffic, Ethernet (10/100 Base-T(X)) [Selectable]
•
Type : 10 Base-T/100 Base-TX (Auto-sensing or fixed)
•
Port Number and Interface : 2 (Each port is separated), RJ45
•
Transmission Rate (Port 1 + Port 2) : 100 Mbps + 50 Mbps, 75 Mbps + 75 Mbps or
2 ch. best effort selectable
•
Flow control : Full Duplex or Half Duprex (Backpressure)/
Auto negotiation