1310 nm Single-mode Transceiver (S1.1)
1x9, SC Duplex Connector, 3.3 V
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
Version 3.3
6/10
Date: 2003/02/17
http:// www.ritekom.com
Connection Diagram
Pin-Out
1. RX GND
2. RD+
3. RD
−
4. SD
5. VCCR
6. VCCT
7. TD
−
8. TD+
9. TX GND
TOP VIEW
N/C
N/C
PIN
SYMBOL
DESCRIPTION
1
RX GND
Receiver Signal Ground.
Directly connect this pin to the receiver ground plane.
2
RD
+
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)
3
RD
−
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)
4
SD
Signal Detect.
Normal optical input levels to the receiver result in a logic “1” output, VOH, asserted. Low input optical
levels to the receiver result in a fault condition indicated by a logic “0” output VOL, deasserted Signal
Detect is a single-ended LVPECL output. SD can be terminated with LVPECL techniques via 50
Ω to
VCCR − 2 V. Alternatively, SD can be loaded with a 180 Ω 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.
5
VCCR
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 VCCR pin.
6
VCCT
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 VCCT pin.
7
TD
−
Transmitter Data In-Bar.
Terminate this high-speed differential LVPECL input with standard LVPECL techniques at the
transmitter input pin. (See recommended circuit schematic)
8
TD
+
Transmitter Data In.
Terminate this high-speed differential LVPECL input with standard LVPECL techniques at the
transmitter input pin. (See recommended circuit schematic)
9
TX GND
Transmitter Signal Ground.
Directly connect this pin to the transmitter signal ground plane. Directly connect this pin to the
transmitter ground plane.
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
