Alcatel 1916 SDH
SDH / SONET integrated modules
Receiver STM-16 / OC-48 with Preamplifier EDFA
Description
These integrated modules are intended
for use in single channel transmission
with pre-amplifier EDFA in
combination with an optical filter. 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.692 and Bellcore GR-253
standards.
Features
•
Bit rate 2.488 Gbit/s &
2.666 Gbit/s (FEC)
•
Sensitivity with preamplifier
- 41 dBm
•
Operating at 1.5 µm wavelength
•
Full performance in operating case
temperature from 0 to + 70 °C
•
Low power consumption
•
Small size less than 100 cm
2
•
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.
Optical characteristics
Parameter
Condition
Symbol
Min
Typical
Max
Unit
Bit rate
Note 1
2.448 or 2.666
GBit/s
Center wavelength
λc
1545
1562
nm
Receiver sensitivity of EDFA
R
EDFA
- 41
- 38
dBm
Receiver sensitivity of Receiver
R
RX
-20
- 14
dBm
Return loss at module
R
Ross
27
dB
Note 1: transmitter with ER min > 12.5 dB with chirp compatible with the dispersion and fiber, preamplifier
EDFA with noise factor > 4.5 dB and optical filter with 3 dB bandwidth < 0.5 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.
Electrical characteristics
Parameter
Condition
Symbol
Min
Typical
Max
Unit
+ 4.75
5
+ 5.25
V
Positive supply voltage
V
CC
+ 380
+ 510
mA
Positive supply current
I
CC
Negative supply voltage
V
EE
- 5.45
- 5.2
- 4.94
V
- 400
- 340
mA
Negative supply current
I
EE
Power consumption
Pc
4.9
W
ECL output data & clock voltage
Note 2
DV
0.5
0.7
0.9
Vpp
Logic high level output
Isrc=-150 µA
V
OH
3.5
4.7
V
0.2
0.44
V
Logic low level output
Isink < 4 mA
V
OL
-3
Alarm activation level
Note 3
A
AC
10
Alarm desactivation level
Note 3
A
DE
10
-4
Alarm activation time
T
AC
95
µs
50
ms
Alarm deactivation time
T
DE
Note 2 : internally AC coupled and externally loaded by 50
Ω.
Note 3 : input power sensitivity is considered at connector interface and related to BER with S/N > 25 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
Maximum optical input power
Positive supply voltage
Negative supply voltage
Output current
Alarm output voltage
Alarm output current
Storage temperature
Storage 72h max
Operating temperature
Symbol
V
CC
V
EE
Min
-5
0
-6
- 50
0
- 0.5
- 25
- 40
0
Max
+6
0
0
V
CC
+ 20
+ 70
+ 70
+ 70
Unit
dBm
V
V
mApp
V
mA
°C
°C
TSTG
TOP
Outline drawing
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.
Serial retimed data output false.
AC coupled with 50
Ω=external
load capability. A high electrical
level corresponds to a low
optical level.
_____
DATA
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.
Pin out
N°
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
Symb
GND
VCC
VCC
GND
VEE
VEE
GND
NUC
NUC
NUC
DTA
NUC
GND
GND
GND
Description
Ground (0 V)
Positive Power Supply
Positive Power Supply
Ground (0 V)
Negative Power Supply
Negative Power Supply
Ground (0 V)
No User Connection
No User Connection
No User Connection
Decision Threshold Adjustment
No User Connection
Ground (0 V)
Ground (0 V)
Ground (0 V)
N° Symb
2 GND
4 VCC
6 VCC
8 GND
10 VEE
12 VEE
14 GND
16 NUC
18 LOS
20 NUC
22 OIL
24 NUC
26 GND
28 GND
30 GND
Description
Ground (0 V)
Positive Power Supply
Positive Power Supply
Ground (0 V)
Negative Power Supply
Negative Power Supply
Ground (0 V )
No User Connection
Loss of Optical Signal
No User Connection
Optical Input Level
No User Connection
Ground (0 V)
Ground (0 V)
Ground (0 V)
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.
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.
Optical Input Level : analog
information, proportional to the
optical input signal.
No User Connection : this lead
must be left open.
LOS
OIL
NUC
System block diagram
LOS
High
voltage
circuit
Clock
Recovery
Decision
Circuit
Clock
Data
Preamplifier
AGC
Analog
Convertion
V
CC
Power
Regulation
G
ND
V
EE
OIL
DTA
Ordering information
Alcatel 1916 SDH
November 2000
Copyright © 2000
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.
Bit Rate (Mbit/s)
2.448
2.666
Options
3CN xxxxx
xA
→
FC/PC
xB
→
SC/PC
Part Number
3CN 00217 CA
3CN 00217 FA
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
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
ATTENTION
OBSERVE
PRECAUTIONS FOR
HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE DEVICES
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