CONFIGURATION & CONNECTORS
2-8
2400-31 FEP Maintenance & Support Guide
Revision 1.0, March 2005
2.3.4
E1 Connectors
Each of the two ATM E1 links uses two 75 ohm BNC connectors (refer to figure 2-6), one for transmit
and one for receive. These connectors are electrically isolated from the front panel (the shield of the
connector is not connected to chassis ground.) The shield of the connector is RING and the center
conductor is TIP.
Figure 2-6. 75ohm BNC Connector
Table 2-7. E1 ATM Port 0 Connector Pin Assignments
Table 2-8. E1 ATM Port 1 Connector Pin Assignments
Pin
CPCI-817
Signal
Description
2
Rx - R0
Receive Ring 0
1
Rx - T0
Receive Tip 0
2
Tx - R0
Transmit Ring 0
1
Tx - T0
Transmit Tip 0
Pin
CPCI-817
Signal
Description
2
Rx - R1
Receive Ring 1
1
Rx - T1
Receive Tip 1
2
Tx - R1
Transmit Ring 1
1
Tx - T1
Transmit Tip 1
Pin 1
Pin 2
