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CRS-150 1:1 Redundancy Switch
Connector Pinouts
3.2.2.4.2 Rx and Tx (Unbalanced) G.703 Connectors, 75Ω BNC
3.2.2.4.3 IDI, DDO Connectors, 75Ω BNC
Another function of these connectors is for auxiliary G.703 data paths operating at 512, 1024, and
2048 kbps. When these rates are selected, the IDI port is the TX terrestrial G.703 input and the
DDO port is the RX G.703 output.
Two 75Ω BNC female connectors are provided for unbalanced operation at the
G.703 data rates of E1 (2.048 Mbps), T2 (6.312 Mbps), or E2 (8448 kbps).
BNC Connector
Rx G.703
Tx G.703
Two female BNC 75Ω connectors are provided for Drop and Insert (D&I)
unbalanced operation at the G.703 data rate of E1 (2.048 Mbps). These are the
Insert Data In (IDI) and Drop Data Out (DDO) ports.
BNC Connector
IDI
DDO
Description
Rx G.703 (Unbalanced E1)
Tx G.703 (Unbalanced E1)
Description
Insert Data Input
Drop Data Output
3–7
Revision 2
MN/CRS150.IOM
Direction
Out
In
Direction
In
Out
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