User's Manual

Installation – RF Path Elements
P/N 709C011801
Page 46
To install HEU
1. Mount HEU chassis - mount the (empty) HEU chassis in the 19-in rack.
2. Install modules - install modules (RIM, RIX, PSM and HCM (or ACM for Slaves) into their respective slots (see following
figure).
IMPORTANT! Unoccupied RIX (Expander Module) slots must be terminated with an Expander Termination module.
Figure 4-1. Fully Occupied HEU Chassis
3. Power-On - connect the power cable(s) to the AC outlet(s) and switch On. If two PS modules are installed, both must be
connected.
4. RF connections - connect the RIM/RIM-M QMA (simplex or duplex connections) to the corresponding RF source (e.g.
BTS, BDA).
IMPORTANT! Be sure to terminate any unused QMA connectors with 50 ohm terminators.
5. HEU Management connections:
• Master/Stand-alone HEU - connect HCM LAN port to the corporate LAN
• Slave HEU - connect a Slave ACM RJ45 INTERNAL port (any port) to a Master HCM RJ45 INTERNAL port.
6. HEU to OIU connections:
• RF - connect the HEU RIX to the corresponding OIU OIX port using the expander cable (provided with the OIU).
• Management - connect an HEU HCM/ACM INTERNAL port to an OIU ACM INTERNAL port.
7. Verify HEU normal operation:
• Check LEDs on the HCM/ACM. See section HCM (Headend Control Module) (on page 30)
• Check LEDs on each RIM/RIM-M module. See RIM (RF Interface Module) (on page 31).