OPTICAL SYSTEMS DESIGN
DOC ID: 10100306
OSD151 OPERATOR MANUAL
PAGE 10 OF 12
2.3
OPERATION
2.3.1
BLOCK DIAGRAM
Below in Figure 6 is a simple block diagram of the OSD151.
FIGURE 6: BLOCK DIAGRAM
2.3.2
CONTROLS
The OSD151 has just one control: a toggle switch located between the optical connectors which selects
either synchronous or asynchronous operation.
D
C
O
N
N
E
C
T
O
R
ENCODER
POWER
REGULATION
Tx Data
Rx Data
Tx Clk
Rx Clk
Tx Data
Rx Data
2MHz OSC
Tx Clk
Rx Clk
Sync/Async Sw
Optical Output
Optical Input
Driver
AMP
Ext Power
DECODER
R
S
4
2
2
/T
T
L
C
O
N
V
E
R
T
E
R