Userʼs
Manual
Model 720941
Optical Transceiver Module
IM 720941-01EN 1/2
1st Edition
Thank you for purchasing the 720941 Optical Transceiver Module. This manual focuses on the handling
precautions of the 720941.To ensure correct use, please read this manual thoroughly before operation.
Keep this manual in a safe place.
For information on the optical transceiver module, see also the manual of the DL950 (IM DL950-02EN).
Checking the Package Contents
After receiving the product and opening the package, check the following contents before use.
Manuals
Optical Transceiver Module
IM 720941-01EN(this manual)
IM 720941-92Z1
PIM113-01Z2
Name
Model or Component Number Notes
Optical Transceiver
Module
720941
1000BASE-SX SFP module 850nm
Manuals
IM 720941-01EN
This manual.
IM 720941-92Z1
A manual for China.
PIM113-01Z2
List of worldwide contacts
The notes and cautions in this manual are categorized using the following symbols.
Improper handling or use can lead to injury to the user or damage to the instrument. This
symbol appears on the instrument to indicate that the user must refer to the user’s manual
for special instructions. The same symbol appears in the corresponding place in the user’s
manual to identify those instructions. In the manual, the symbol is used in conjunction with
the word “WARNING” or “CAUTION.”
WARNING
Calls attention to actions or conditions that could cause serious or fatal injury to the user,
and precautions that can be taken to prevent such occurrences.
CAUTION
Calls attention to actions or conditions that could cause light injury to the user or damage to
the instrument or user’s data, and precautions that can be taken to prevent such occurrences.
Note
Calls attention to information that is important for the proper operation of the instrument.
French
Une manipulation ou une utilisation incorrectes risquent de blesser l’utilisateur ou
d’endommager l’instrument. Ce symbole apparaît sur l’instrument pour indiquer à l’utilisateur
qu’il doit se reporter au manuel de l’utilisateur afin d’y lire les instructions spécifiques
correspondantes. Ce même symbole apparaît à la section correspondante du manuel de
l’utilisateur pour signaler lesdites instructions. Dans le manuel de l’utilisateur, ce symbole
est accompagné des termes AVERTISSEMENT et ATTENTION.
AVERTISSEMENT
Attire l’attention sur des gestes ou des conditions susceptibles de provoquer des
blessures graves (voire mortelles), et sur les précautions de sécurité pouvant préve-
nir de tels accidents.
ATTENTION
Attire l’attention sur des gestes ou des conditions susceptibles de provoquer des
blessures légères ou d’endommager l’instrument ou les données de l’utilisateur, et
sur les précautions de sécurité susceptibles de prévenir de tels accidents.
Safety Precautions
This product is designed to be used by a person with specialized knowledge. The general safety pre-
cautions described herein must be observed during all phases of operation. If the instrument is used in
a manner not specified in this manual, the protection provided by the instrument may be impaired. This
manual is part of the product and contains important information. Store this manual in a safe place close
to the instrument so that you can refer to it immediately. Keep this manual until you dispose of the instru-
ment. YOKOGAWA assumes no liability for the customer’s failure to comply with these requirements.
1st Edition: February 2021 (YMI)
All Rights Reserved, Copyright © 2021 Yokogawa Test & Measurement Corporation
Printed in Singapore
*IM 720941-01EN/1*
