RAD Data comm Connecting the Interfaces, Selecting the Impedance, Closing the RIC-E1 Case

Selecting the Impedance

When RIC-E1 uses the balanced interface:

•Terminate the impedance of G.703 link to 120Ω.

•Use only the RJ-45 connector to transmit full duplex data to the G.703 network over UTP or STP cable.

When RIC-E1 uses the unbalanced interface:

•Terminate the impedance of G.703 link to 75Ω.

•Use only the coaxial BNC connectors to transmit to the G.703 network via two coaxial cables.

Closing the RIC-E1 Case

After completing the internal settings, close the unit case.

To close the RIC-E1 case:

1.Position the lower half of the RIC-E1 case on the flat surface.

2.Install the top cover making sure the top cover guides enter the corresponding recesses at the end of the unit.

3.Secure the two screws located at the end of the unit.

4.Fit the inside tabs of the blue side panel into the unit case grooves, and slide the side panel until snaps into place.

Connecting the Interfaces

Figure 2-2and shows the rear panel of the AC-powered RIC-E1 unit.

Figure 2-2. RIC-E1 Rear Panel

Connecting the E1 Line

RIC-E1 link interface terminates in balanced and unbalanced connectors, marked LINK.

To connect the balanced interface:

•Use RJ-45 male connector and connect it to the RIC-E1 RJ-45 port. Appendix A lists the balanced connector pin assignment.

To connect the unbalanced interface:

1.Connect the receive line to the back panel connector designated TX.

2.Connect the transmit line to the back panel connector designated RX.

Do not connect both balanced and unbalanced connectors.

Warning