Description
These integrated modules are intended
for use Dense Wavelength Division
Multiplex (D-WDM) at SDH and
SONET bit rates with a lot of noise on
the optical links with several EDFAs.
The receiver contains an in-house III-V
APD (Avalanche Photodiode) detector
with preamplifier in a front-end
module, a main amplifier ASIC, a
clock and data recovery function with
accurate decision circuit. The modules
are housed in a space-saving 30-pin
package, providing the same electrical
access for overall applications. The
Alcatel 1916 SDH family is a range of
transmitter and receiver modules,
providing convenient and flexible
optical interfaces for SDH / SONET
systems operating at 2.488 Gbit/s &
2.666 Gbit/s and exceeds the
applicable ITU-T G.957, ITU-T G.783,
ITU-T G.691 and Bellcore GR-253
standards.
Features
• D-WDM receivers for Ultra-Long-
Haul :
6 400 ps/nm (320 km)
12 800 ps/nm (640 km)
• Bit rate 2.488 Gbit/s & 2.666
Gbit/s (FEC)
• Operate with high noise :
up to S/N = 14 dB / 0.1 nm at
2.666 Gbit/s (FEC)
up to S/N = 19 dB / 0.1 nm at 2.
488 Gbit/s
• Operating 1.5 µm wavelength
• Full performance in operating case
temperature from 0 to + 70 °C
• Low power consumption
• Small size less than 100 cm2
• Data Reshaping
• Clock recovery & Data Retiming
• Convenient digital alarms to
minimize external circuitry
• Analog information for flexible
integration
• Common pin-out for all modules
• Alcatel Reliability and Qualification
Program for built in quality
Applications
Used in transmission systems from
medium to high-speed for
intermediate-reach to long-reach
applications, the Alcatel 1900 SDH
family operates at SONET OC-3,
OC-12 and OC-48 rates as well as at
ITU-T SDH rates of STM-1, STM-4 and
STM-16. Covering all types of
SDH / SONET optical interfaces
(tributaries and aggregates) the
Alcatel 1900 SDH modules are
suitable for line systems, Add Drop
Multiplexers and digital cross-connects
as well as ATM switches.
As part of the Alcatel 1900 SDH
family, the Alcatel 1916 SDH module
is suited for all types of STM-16 (Short-
Haul, Long-Haul, Very-Long-Haul and
Ultra-Long-Haul) and OC-48
(Intermediate-Reach, Long-Reach and
Ultra-Long-Reach) optical interfaces.
These modules ensure ease of use and
offer new flexibility to system designers.
A
lcatel 1916 SDH
SDH / SONET integrated modules
Receiver STM-16 / OC-48 for D-WDM
Optical characteristics
Condition Symb Min Typ Max Min Typ Max Unit
Y-16.2 WDM Z-16.2 WDM
Dispersion Note 1 6400 12800 ps/nm
Center wavelength λc 1530 1560 1530 1560 nm
Receiver sensitivity Note 2 RSEN - 32 - 28 - 32 - 28 dBm
Note 3 - 31 - 27 - 31 - 27
Receiver overload Note 2 ROVE - 8 - 8 dBm
Note 3 - 8 - 8 dBm
BER floor Note 4 BERFR 10-7 10-5 10-7 10-5
Note 1: WDM transmitter with ER min > 12 dB with chirp compatible with the dispersion and fiber, with + 7
dBm at all EDFAs output power and optical filter with equivalent noise bandwidth < 1.6nm.
Note 2 : S/N = 19 dB / 0.1 nm; BER = 10-12 back to back.
Note 3 : S/N = 19 dB / 0.1 nm; BER = 10-12.
Note 4 : S/N = 14 dB / 0.1 nm; BER = 10-5 at 2.666 Gbit/s bit rate with FEC function.
All parameters are specified End-of-Life within the overall relevant operating temperature range.
The typical values are referenced to + 25 °C, nominal power supply, beginning of life.
Electrical characteristics
Parameter Condition Symbol Min Typical Max Unit
Positive supply voltage VCC + 4.75 5 + 5.25 V
Positive supply current ICC + 380 + 510 mA
Negative supply voltage VEE - 5.45 - 5.2 - 4.94 V
Negative supply current IEE - 400 - 340 mA
Power consumption Pc 4.9 W
ECL output data & clock voltage Note 5 DV 0.5 0.7 0.9 Vpp
Logic high level output Isrc=-150 µA VOH 3.5 4.7 V
Logic low level output Isink < 4 mA VOL 0.2 0.44 V
Alarm activation level Note 6 AAC 10-3
Alarm desactivation level Note 6 ADE 10-4
Alarm activation time TAC 95 µs
Alarm deactivation time TDE 50 ms
Note 5 : internally AC coupled and externally loaded by 50 Ω.
Note 6 : input power sensitivity is considered at connector interface and related to BER with S/N > 19 dB / 0.1
nm.
All parameters are specified End-of-Life within the overall relevant operating temperature range. The typical
values are referenced to + 25 °C, nominal power supply, beginning of life.
Absolute maximum ratings
Parameter Symbol Min Max Unit
Maximum optical input power - 5 dBm
Positive supply voltage VCC 0+ 6 V
Negative supply voltage VEE - 6 0 V
Output current - 50 0 mApp
Alarm output voltage 0 VCC V
Alarm output current - 0.5 + 20 mA
Storage temperature TSTG - 25 + 70 °C
Storage 72h max - 40 + 70
Operating temperature TOP 0 + 70 °C
Outline drawing
Pin out
N° Symb Description N° Symb Description
1 GND Ground (0 V) 2 GND Ground (0 V)
3 VCC Positive Power Supply 4 VCC Positive Power Supply
5 VCC Positive Power Supply 6 VCC Positive Power Supply
7 GND Ground (0 V) 8 GND Ground (0 V)
9 VEE Negative Power Supply 10 VEE Negative Power Supply
11 VEE Negative Power Supply 12 VEE Negative Power Supply
13 GND Ground (0 V) 14 GND Ground (0 V )
15 NUC No User Connection 16 NUC No User Connection
17 NUC No User Connection 18 LOS Loss of Optical Signal
19 NUC No User Connection 20 NUC No User Connection
21 DTA Decision Threshold Adjustment 22 OIL Optical Input Level
23 NUC No User Connection 24 NUC No User Connection
25 GND Ground (0 V) 26 GND Ground (0 V)
27 GND Ground (0 V) 28 GND Ground (0 V)
29 GND Ground (0 V) 30 GND Ground (0 V)
System block diagram
Data
Clock
Decision
Circuit
Preamplifier
Clock
Recovery
Power
Regulation GND
VEE
VCC
AGC
High
voltage
circuit
LOS
DTA
OIL
Analog
Convertion
Pin description
DATA Serial retimed data output true.
AC coupled with 50 Ω=external
load capability. A high electrical
level corresponds to a high
optical level.
_____
DATA Serial retimed data output false.
AC coupled with 50 Ω=external
load capability. A high electrical
level corresponds to a low
optical level.
CLOCK Serial recovered clock output
true. AC coupled with 50
Ω=external load capability. The
falling edge is in the middle of
the data pattern.
______
CLOCK Serial recovered clock output
false. AC coupled with 50
external load capability. The
rising edge is in the middle of
the data pattern.
DTA Decision Threshold Adjustment :
input analog voltage that allows
optimization of the sensitivity
around the factory setting. When
DTA is opened the factory
setting is the default value.
LOS Loss of Optical Signal : set when
the incoming optical power level
cross the alarm threshold. An
hysteresis is provided. Open
collector with internal pull-up.
The active level corresponds to
a 0 V voltage output level.
OIL Optical Input Level : analog
information, proportional to the
optical input signal.
NUC No User Connection : this lead
must be left open.
Ordering information
Alcatel 1916 SDH
Dispersion Bit Rate Part Number
(ps/nm) Mbit/s
Y-16.2 WDM 6 400 2.448 3CN 00217 GA
2.666 3CN 00217 KA
Z-16.2 WDM 12 800 2.448 3CN 00217 HA
2.666 3CN 00217 JA
Options
3CN xxxxx xA → FC/PC
xB → SC/PC
November 2000
Copyright © 1999
Alcatel Optronics
Customized versions are available for large
quantities.
Performance figures contained in this
document must be specifically confirmed in
writing by Alcatel Optronics before they
become applicable to any particular order
or contract. Alcatel Optronics reserves the
right to make changes to the products or
information contained herein without
notice.
Standards
Compliant with ITU-T G.957 & G.783 &
G.691
Optical fiber according to ITU-T G.652
Environment according to IEC 68-2 and
MIL STD 883
Bellcore TR-EOP-000063
Bellcore GR-253-CORE
ATTENTION
OBSERVE
PRECAUTIONS FOR
HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE DEVICES
EUROPE
Route de Ville just
F-91625 NOZAY CEDEX
Tel : (+33) 1 64 49 49 10
Fax : (+33) 1 64 49 49 61
USA
12030 Sunrise Valley Drive
RESTON - VA 22091-3495
Tel : (+1) 703 715 3921
Fax : (+1) 703 860 1183
CANADA
45, De Villebois, suite 200
Gatineau (PQ)
Canada, J8T 8J7
Tel : (+1) 819 243 3755
Fax : (+1) 819 243 3354
JAPAN
Yebisu Garden Place Tower
PO Box 5024
20-3, Ebisu 4 - Chome
Shibuya - ku TOKYO 150 - 6028
Tel : (+81) 3 5424 85 65
Fax : (+81) 3 5424 85 81
