Zhone 4821-A2 ユーザーズマニュアル

4821-A2-ZN21-30

 BitStorm 4800 Express Model 4821-A2 Installation Guide

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8 A rare phenomenon can create a voltage potential between the earth 

grounds of two or more buildings. If products installed in separate 

buildings are interconnected, the voltage potential may cause a hazardous 

condition. Consult a qualified electrical consultant to determine whether 

or not this phenomenon exists and, if necessary, implement corrective 

action prior to interconnecting the products.

9 In addition, if the equipment is to be used with telecommunications 

circuits, take the following precautions:
— Never install telephone wiring during a lightning storm.
— Never install telephone jacks in wet locations unless the jack is 

specifically designed for wet locations.

— Never touch uninsulated telephone wires or terminals unless the 

telephone line has been disconnected at the network interface.

— Use caution when installing or modifying telephone lines.
— Avoid using a telephone (other than a cordless type) during an 

electrical storm. There may be a remote risk of electric shock from 

lightning.

— Do not use the telephone to report a gas leak in the vicinity of the 

leak.

10 CLASS 1 LASER PRODUCT: This product has provisions for the 

customer to install a Class 1 laser transciever, which provides optical 

coupling to the telecommunication network. Once a Class 1 laser product 

is installed, the equipment is to be considered to be a Class 1 Laser 

Product (Appareil à Laser de Classe 1). The customer is responsible for 

selecting and installing the laser transciever and for insuring that the Class 

1 AEL (Allowable Emission Limit) per EN/IEC 60825 is not exceeded 

after the laser transponders have been installed. Do not install laser 

products whose class rating is greater than 1. Refer to all important safety 

instructions that accompanied the transciever prior to installation. Only 

laser Class 1 devices, certified for use in the country of installation by the 

cognizant agency are to be utilized in this product. 

11 The equipment is intended for installation in a max. 50° C ambient 

temperature, in an environment that is free of dust and dirt.

12 The power supply cord for countries other than North America is to be a 

minimum H05 V V-F type, min. 0.75 mm

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, 2-conductor and earth ground 

terminated in an IEC 320 connector on one end, and a plug which is 

certified for use in the country of installation at the other end.

13 Do not physically stack more than eight (8) 26x1 units high. Physical 

stability has not been evaluated for stacking higher than eight units, and 

any configuration greater than eight may result in an unstable (tip-over) 

condition. Ensure that the four (4) rubber feet supplied with the product 

have been installed on the bottom of each unit prior to stacking any 26x1 

units on top of one another.