SFP-OC3-CX Datasheet, PDF (1/3 Pages) MRV Communications, Inc. – Copper OC-3 SFP Transceiver

Datasheet
Copper OC-3 SFP Transceiver
SFP-OC3-CX
Overview
MRV’s SFP-OC3-CX module is a Small Form-factor Pluggable
(SFP) module that offers easy full-duplex interfacing with
155 Mbps OC-3 electrical interfaces (STM-1e, ES1) over 75Ω
telecommunications coaxial cable. It includes Clock and Data
Recovery (CDR) in both directions, and a CMI encoder/decoder
for transparent NRZ-to-CMI line code conversion. It provides
Loss of Signal (LOS) detection for electrical CMI interfaces and
the option to disable the transmit driver to support the Link
Integrity Notification (LIN) feature on applicable MRV modules.
A serial interface provides access to an on-board EEPROM for
identification information including manufacturer, part number,
serial number, and date code.
The SFP-OC3-CS complies with Multi-Source Agreement SFF-
8472 for SFP transceivers.
Applications
Typical applications include SDH multiplexer systems or ATM-
switch and IP-router equipment supporting SDH physical
interfaces. The SFP-OC3-CX module is fully interchangeable
with STM-1 and OC-3 optical SFP transceivers, offering system
developers an easy migration to STM-1 electrical interfaces.
Any system that already supports the STM-1 optical SFP also
supports the STM-1 electrical SFP. This modular flexibility
minimizes development efforts and time-to-market for STM-1
solutions because a single card design supports both optical
and electrical STM-1 interfaces.
The SFP-OC3-CX and optical STM-1 SFP interfaces can be
changed in the field to match the system port types to the
application while the system is in operation. The common
SFP interface also allows for reduced inventory of field
replacements.
Features
MSA compliance for SFP transceivers (SFF-8472)
Detection for Loss-of-Signal (ITU-T G.783)
Control for transmit power down*
Handles over 12.7 dB of cable loss
Extended temperature operation: -20 C to 85 C
75Ω media interface compliance for CMI coded 155
Mbps electrical interfaces
- ITU-T G.703
- Telcordia GR-253
75Ω DIN 1.0/2.3 female coaxial interface for Type A
and Type D coupling
Low power dissipation (0.6 W typical)
RoHS 5/6 compliance
* LIN support for applicable MRV modules
Benefits
Provides end user flexibility through independent
port configuration
Reduces deployment cost for STM-1 electrical
interfaces
Figure 1: Transceiver Functional Diagram
Circuit Pack
Interface
STM-1e Line
Interface
DATA OUT
155 Mbps
TXDIS
Line Coding
Clock Recovery
TX
STM-1e
CMI-OUT
155 Mbps
RXLOS
DATA IN
155 Mbps
CLOCK
EEPROM
DATA
EEPROM
Monitor
&
Control
Line Coding
Clock Recovery
RX
EEPROM
Serial ID
STM-1e
CMI-IN
155 Mbps
1