6
5. Apply power to both Pure Digital
Fiberlink
®
units. For box versions
using DC power connections, refer to
Figure 1.
6. When power is applied, the green
POWER LED will light, indicating
the presence of operating power. The VIDEO LED will give an indica-
tion as described on Page 8.
7. The green AUDIO LED will give an indication as stated on
Page 8.
8. The system should now be operational.
Note that the rack card version has an additional red LED for indicat-
ing the presence of an alarm condition (loss of signal). Refer to the
table on the following page for alarm enables.
System Connections:
The input and output connections for the Pure Digital Fiberlink
®
7220 Series system are as follows:
Audio Connector (Transmitter & Receiver):
3.5mm stereo jack
Video Connector (Transmitter & Receiver):
HD-15F connector
Video Pin Out:
Transmitter
Receiver
1
Red
Red
2
Green
Green
3
Blue
Blue
4
N/C
N/C
5
Ground
Ground
6
Ground
Ground
7
Ground
Ground
7
System Connections - “Video Pin Out” continued:
Video Pin Outs:
Transmitter
Receiver
8
Ground
Ground
9
N/C
N/C
10
Ground
Ground
11
N/C
N/C
12
N/C
N/C
13
Hor. Sync. In
Hor. Sync Out
14
Vert. Sync In
Vert. Sync Out
15
N/C
N/C
Indicator LEDs and Alarm Circuitry:
The stand-alone box version of the Pure Digital Fiberlink
®
7220
Series transmission unit has three integral indicator LEDs that are used
to monitor the state of the unit.
The rack card version of this product has an additional red indicator
LED that lights when an alarm condition exists. The rack card unit also
Note: “Loss of Video” refers to either loss of horizontal or vertical
sync. “Loss of Signal” refers to the absence of an optical signal.
Alarm Switch Settings (Transmitter; Card Version Only):
Switch Position
Alarm Indication
On
Off
1
Loss of Video
Enabled
Disabled
2
N/A
N/A
N/A
Alarm Switch Settings (Receiver; Card Version Only):
Switch Position
Alarm Indication
On
Off
1
Loss of Signal
Enabled
Disabled
2
Loss of Video
Enabled
Disabled
