OPTICAL SYSTEMS DESIGN
DOC ID: 10102908
OSD730 OPERATOR MANUAL
Page 8
1.6
PIN ASSIGNMENTS FOR THE OSD730/4A.4CC VERSION
TABLE 4: OSD730/4A.4CC PIN CONNECTION
Function
Pin
Function
Pin
Digital Ground
1, 7
Analog Ground
37, 38, 39, 40,
41, 42, 43, 44
CC I/P1
16
Audio I/P1+
Audio I/P1 -
8
23
CC I/P2
32
Audio I/P2+
Audio I/P2 -
10
25
CC I/P3
19
Audio I/P3+
Audio I/P3 -
12
27
CC I/P4
35
Audio I/P4+
Audio I/P4 -
14
29
CC1 Common
CC1 N/O Contact
2
17
Audio O/P1+
Audio O/P1 -
9
24
CC2 Common
CC2 N/O Contact
18
33
Audio O/P2+
Audio O/P2 -
11
26
CC3 Common
CC3 N/O Contact
5
20
Audio O/P3+
Audio O/P3 -
13
28
CC4 Common
CC4 N/O Contact
21
36
Audio O/P4+
Audio O/P4 -
15
30
LINK ALARM
22
NOTES:
O/P:
Output from OSD730 to external equipment
I/P:
Input to OSD730 from external equipment
N/O:
Normally Open connection
CC:
Contact Closure
FIGURE 2: DB44 FEMALE CONNECTOR
RELAY OPERATION
The relay outputs are normally open when a the input state is open or high. The relay outputs are closed when the
input state is closed or low (Ground or 0V). If the fiber link is not connected, or power is switched off from the
transmitting OSD730 unit, all the relay outputs will be closed.
1
15
31
44
16
30
