Installation manual

XR6/XR3 Installation Manual Audio and IBOC inputs
Page 8-4 Issue 3.0 2009-07-15
If you provide a backup analog program stream to an exciter configured as analog in an IBOC
installation, the system can automatically switch to the backup analog exciter and audio
program stream. Refer to the XR6/XR3 Operating and Maintenance Manual for information
about setting up exciter changeover.
Configuring Exciter A for IBOC
See Figure 8.1 on page 8-2 and Figure 8.2 on page 8-3.
1. On the remote interface PWB, set the IBOC Input Select A input to single-ended
configuration by setting E19 to 2-3.
2. On the remote interface PWB, connect a jumper from
J3-23 to ground (TB2-4) permanently
(or through the remote system), and set
J3-25 to open circuit. This will enable the IBOC
inputs on Exciter A. A connector shell and solder pins for J3 are provided in the ancillary kit.
3. On the RF drive buffer PWB, set E3 to Low to select low sensitivity by shorting pins 2 and 3.
4. On the RF drive buffer PWB, set E1 to Ext by shorting pins 2 and 3, and E2 to Int by
shorting pins 1 and 2.
Configuring Exciter B for IBOC
See Figure 8.1 on page 8-2 and Figure 8.2 on page 8-3.
1. On the remote interface PWB, set the IBOC Input Select B input to single-ended
configuration by setting E19 to 2-3.
2. On the remote interface PWB, connect a jumper from J3-25 to ground (TB2-4) permanently
(or through the remote system), and set J3-23 to open circuit. This will enable the IBOC
inputs on Exciter B. A connecter shell and solder pins for J3 are provided in the ancillary kit.
3. On the RF drive buffer PWB, set
E3 to Low to select low sensitivity by shorting pins 2 and 3.
4. On the RF drive buffer PWB, set E1 to Int by shorting pins 1 and 2, and E2 to Ext by
shorting pins 2 and 3.
Configuring both Exciter A and B for IBOC
See Figure 8.1 on page 8-2 and Figure 8.2 on page 8-3.
If both exciters are driven from the NE-IBOC, the NE-IBOC becomes a potential single
point of failure in the system. See “IBOC Configuration” on page 8-3.
1. On the remote interface PWB, set the IBOC Input Select A and the IBOC Input Select B
inputs to single-ended configuration by setting E19 to 2-3.