Specifications

7-30 Cisco MGX 8220 Reference, Release 4.1
Making the Service Interface Connections
Figure7-23 Cabling for Redundant BNM Cards
Making the Service Interface Connections
The customer’s data is connected to the MGX 8220 shelf through T1, E1 lines, X.21, or HHSI lines.
Service lines using DB15 and RJ-48 connectors need only one cable per port. Service lines using
BNC or SMB connectors require two cables (one transmit and one receive) from the E1 port of the
customer’s equipment to a E1 port on an MGX 8220 line module.