Installation manual

Revision F • 3/12
HARRIS CORPORATION
2-4
2 Hardware Installation
panel display board, as shown on the previous
page. Replace the top cover, then rack mount the
HDE-200 using four rack screws.
The PPM Encoder kits include an interface
cable (schematic shown below) which plugs into
the keyed Post Delay Loop In/Out connector on
the rear panel. Connectors P2 and P4 go to the
PPM Encoder for the HD Radio main channel.
Connectors P3 and P5 go to the PPM Encoder
for the analog broadcast channel.
NOTE: Use only these AES Digital
PPM Encoders (Arbitron 1000-1134-
xx, 1000-1149-xx, 1000-1150-xx or
1000-1161-xx) with the HDE-200.
2.3 HDE-200 Connections
How the HDE-200 is physically connected with
peripheral devices depends upon where the HDE-
200 is installed (a studio, the TOC, or transmitter
room) and what peripherals are connected, so all
connections may not be used.
2.3.1 GROUNDING & SHIELDING
With the HDE-200 rack mounted, the broad-
cast facility’s technical ground wire can connect
to the chassis ground screw provided on the rear
panel near the power supply.
For signal shielding, connect the digital audio
cable shields at both the HDE-200 and the inter-
connecting equipment ends when all system com-
ponents share a common ground potential and use
isolated ground AC outlets tied to the main tech-
nical ground.
When isolated ground AC outlets are not avail-
able, connect cable shields at the HDE-200 end
only. Do not connect the shields at the peripheral
equipment end. Ensure that all peripheral equip-
ment has a clean ground, either through their
power cords or through separate ground wires tied
to the facility’s technical ground.
GROUNDING NOTE: The power
supply’s AC mains safety or “U”
ground ties to the chassis. A rear
panel screw can be used for a sepa-
rate ground wire to technical ground.
AUDIO GROUND NOISES: Buzz
pickup is generally electrostatic—
capacitive coupling between audio
lines and AC power lines or logic and
display cabling. To avoid audio
ground noises, separate audio wires,
as much as possible, from AC power
lines and logic/display cabling.
2.3.2 GPS ANTENNA CONNECTION
The HDE-200 uses the GPS System to ensure
the time-accuracy of its internal 44.1 kHz sample
clock and HD Radio data stream. The included
(or equivalent) GPS antenna must be connected
and must have sufficient sky exposure to lock onto
the GPS satellites in order to meet operational
specifications. In addition, the HD Radio Exciter
must also be locked to the GPS System.
When the HDE-200 is co-located with the HD
Radio Exciter its 10 MHz clock output can be
used to sync the two products together. When the
People Meter Encoder Interface Cable
1 MPS LOOP OUT +
2 MPS LOOP OUT -
3 GROUND
4 MPS LOOP IN +
5 MPS LOOP IN -
6 GROUND
7 MAIN DELAY LOOP OUT +
8 MAIN DELAY LOOP OUT -
9 GROUND
10 MAIN DELAY LOOP IN +
11 MAIN DELAY LOOP IN -
12 GROUND
P1 SIGNAL LIST
6
5
4
3
2
1
12
11
10
9
8
7
1
3
2
+
-
1
3
2
+
-
1
3
2
+
-
1
3
2
+
-
P1
(12-PIN MOD IV)
P2
(XLR-F)
P3
(XLR-F)
P4
(XLR-M)
P5
(XLR-M)
WIRE INSERTION
END VIEW
ARBITRON
PPM (FOR
HD SIGNAL)
PPM OUT
PPM IN
ARBITRON
PPM (FOR
MAIN SIGNAL)
PPM OUT
PPM IN