6
Pin Descriptions:
Pin 1 Receiver Signal Ground V
EE
RX:
Directly connect this pin to the receiver ground plane.
Pin 2 Receiver Power Supply V
CC
RX:
Provide +3.3 V dc via the recommended receiver power
supply lter circuit. Locate the power supply lter cir-
cuit as close as possible to the V
CC
RX pin. Note: the l-
ter circuit should not cause V
CC
to drop below minimum
specication.
Pin 3 Signal Detect SD:
Normal optical input levels to the receiver result in a
logic “1” output. Low optical input levels to the receiver
result in a logic “0” output. This Signal Detect output
can be used to drive a TTL input on an upstream circuit,
such as Signal Detect input or Loss of Signal-bar.
Pin 4 Receiver Data Out Bar RD-:
PECL logic family. Output internally biased and ac
coupled.
Pin 5 Receiver Data Out RD+:
PECL logic family. Output internally biased and ac
coupled.
Pin 6 Transmitter Power Supply V
CC
TX:
Provide +3.3 V dc via the recommended transmitter
power supply lter circuit. Locate the power supply l-
ter circuit as close as possible to the V
CC
TX pin.
Pin 7 Transmitter Signal Ground V
EE
TX:
Directly connect this pin to the transmitter signal
ground plane.
Pin 8 Transmitter Disable T
DIS
:
Optional feature, connect this pin to +3.3 V TTL logic
high “1” to disable module. To enable module connect
to TTL logic low “0”.
Pin 9 Transmitter Data In TD+:
PECL logic family. Internal terminations are provided
(Terminations, ac coupling).
Pin 10 Transmitter Data In Bar TD-:
Internal terminations are provided (Terminations, ac
coupling).
Mounting Studs/Solder Posts
The two mounting studs are provided for transceiver
mechanical attachment to the circuit board. It is rec-
ommended that the holes in the circuit board be con-
nected to chassis ground.
Connection Diagram
Figure 5. Pin Out Diagram (Top View)
TRANSMITTER DATA IN BAR
TRANSMITTER DATA IN
TRANSMITTER DISABLE
TRANSMITTER SIGNAL GROUND
TRANSMITTER POWER SUPPLY
RX TX
o
o
o
o
o
1
2
3
4
5
o
o
o
o
o
10
9
8
7
6
RECEIVER SIGNAL GROUND
RECEIVER POWER SUPPLY
SIGNAL DETECT
RECEIVER DATA OUT BAR
RECEIVER DATA OUT
Top
View
Mounting Studs/
Solder Posts
