
TX-1310/RX-1550 nm Single-mode Bi-directional (Single-Fiber)Transceiver
2
×
5 SC Simplex Connector, 3.3 V (17dB Margin)
155 Mbps ATM/SONET OC-3/SDH STM-1
Headquarters :
No. 669, Sec. 4 Chung Hsing Road
Chudung, HsinChu, Taiwan 310, ROC
Tel: +886-3-582-8270
Fax: +886-3-582-8416
Revision : 4.5
6/10
Date : 2003/02/17
http:// www.ritekom.com
Connection Diagram
Pin-Out
TOP VIEW
Case
1
RX
GND
2
V
CCR
3
SD
4
RD
5
RD+
TD+
9
TX
DIS
8
TX
GND
7
V
CCT
6
TD
10
Case
PIN
1
SYMBOL
RX GND
DESCRIPTION
Receiver Signal Ground, Directly connect this pin to the receiver ground plane.
Receiver Power Supply
Provide
+
3.3 Vdc via the recommended receiver power supply filter circuit. Locate the power supply filter
circuit as close as possible to the
V
CCR
pin.
Signal Detect.
Normal optical input levels to the receiver result in a logic “1” output,
V
OH
, asserted. Low input optical levels
to the receiver result in a fault condition indicated by a logic “0” output
V
OL
, deasserted Signal Detect is a
single-ended LVPECL output.
SD
can be terminated with LVPECL techniques via 50
to
V
CCR
– 2 V.
Alternatively,
SD
can be loaded with a 180
resistor to
RX GND
to conserve electrical power with small
compromise to signal quality. If Signal Detect output is not used, leave it open-circuited. This Signal Detect
output can be used to drive a LVPECL input on an upstream circuit, such as, Signal Detect input or Loss of
Signal-bar.
RD–
is an open-emitter output circuit.
Terminate this high-speed differential LVPECL output with standard LVPECL techniques at the follow-on
device input pin. (See recommended circuit schematic)
RD+
is an open-emitter output circuit.
Terminate this high-speed differential LVPECL output with standard LVPECL techniques at the follow-on
device input pin. (See recommended circuit schematic)
Transmitter Power Supply
Provide +3.3 Vdc via the recommended transmitter power supply filter circuit. Locate the power supply filter
circuit as close as possible to the
V
CCT
pin.
Transmitter Signal Ground
Directly connect this pin to the transmitter signal ground plane. Directly connect this pin to the transmitter
ground plane.
Transmitter Disable
Connect this pin to +3.3V TTL logic high “1” to disable transmitter. To enable module connect to TTL logic
low “0” or open.
Transmitter Data In
Terminate this high-speed differential LVPECL input with standard LVPECL techniques at the transmitter
input pin. (See recommended circuit schematic)
Transmitter Data In-Bar
Terminate this high-speed differential LVPECL input with standard LVPECL techniques at the transmitter
input pin. (See recommended circuit schematic)
2
V
CCR
3
SD
4
RD
–
5
RD
+
6
V
CCT
7
TX GND
8
TX
DIS
9
TD
+
10
TD
–