Crocus CNV Technical specifications
Reference manual 151
12.2 Onboard G703 interface
Onboard G703 interface specifications
The onboard G703 interface have the following specifications:
Parameter Description
connector front RJ45 or rear line connector block (strap selectable)
impedance 75 Ohm or 120 Ohm (strap selectable)
compliance ITU-T G.703
coding HDB3 or AMI
speed 2048 kbps
acceptable jitter compliant to G.823
RJ45 connector pin layout (TT and CV)
The front RJ45 connector has the following pin layout:
Pin Signal DTE Figure
1 receive A (RxA) input
2 receive B (RxB) input
3 signal ground -
4 transmit A (TxA) output
5 transmit B (TxB) output
6 signal ground -
7 not used -
8 not used -
Rear line connector block (on CN4) pin layout (for CV only)
The rear line connector block on the CN4 has the following pin layout:
Converter no. RX / TX Line connector block
positions
DTE
receive 1 and 2 input converter A
transmit 3 and 4 output
receive 5 and 6 input converter B
transmit 7 and 8 output
1 … 8
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