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A good user manual
The rules should oblige the seller to give the purchaser an operating instrucion of ZyXEL Communications EM-422, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.
What is an instruction?
The term originates from the Latin word „instructio”, which means organizing. Therefore, in an instruction of ZyXEL Communications EM-422 one could find a process description. An instruction's purpose is to teach, to ease the start-up and an item's use or performance of certain activities. An instruction is a compilation of information about an item/a service, it is a clue.
Unfortunately, only a few customers devote their time to read an instruction of ZyXEL Communications EM-422. A good user manual introduces us to a number of additional functionalities of the purchased item, and also helps us to avoid the formation of most of the defects.
What should a perfect user manual contain?
First and foremost, an user manual of ZyXEL Communications EM-422 should contain:
- informations concerning technical data of ZyXEL Communications EM-422
- name of the manufacturer and a year of construction of the ZyXEL Communications EM-422 item
- rules of operation, control and maintenance of the ZyXEL Communications EM-422 item
- safety signs and mark certificates which confirm compatibility with appropriate standards
Why don't we read the manuals?
Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of ZyXEL Communications EM-422 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of ZyXEL Communications EM-422, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the ZyXEL Communications service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of ZyXEL Communications EM-422.
Why one should read the manuals?
It is mostly in the manuals where we will find the details concerning construction and possibility of the ZyXEL Communications EM-422 item, and its use of respective accessory, as well as information concerning all the functions and facilities.
After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.
Table of contents for the manual
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Page 1
Copyright © 2007. All rights reserved EM-422 2-Slot XFP 10Gigabit Module User ’ s Guide V ersion 1.00 7/2007 Edition 1[...]
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Page 2
EM-422 User’s Guide 2 Overview The EM-422 is an upli nk module with two slots for XFP (10- Gigabit Small Form Factor Plugga ble) transceivers. It is designed for use with high-speed switches, such as the XGS- 4528F . After installing the EM-422 in a switch, the switch can have 10 Gigabit connections to a backb one switch or other network devices.[...]
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Page 3
3 EM-422 User’s Gu ide 1 Hardware Inst allation Follow these steps to install the EM-422 in a switch. " Modules are NOT h ot swappable! 1 T urn off your switch and unplug all power supply cords (including any backup power supply cords) from the switch. 2 Loosen the screws fro m the cover plate and remove the cover plate from an expansion slo[...]
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Page 4
EM-422 User’s Guide 4 4 Insert the EM-422 into an available expansion slot on the switch. Press it firmly until the EM-422 snaps into place. " Never force, bend or tw ist the EM-422s into the expansion slot s. 5 Secure it to the switch with the retaining screws. 6 T urn on the switch. The switch automatically detects the installed EM-422. Co[...]
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Page 5
5 EM-422 User’s Gu ide 2 T ransceiver Inst allation Use the following steps to inst all an XFP transceiver . 1 Insert the transceiver into th e slot with the exposed section of PCB board facing down. 2 Press the transceiver firmly until it clicks into place. 3 The EM-422 automat ically detect s the instal led transceiver . Check the LEDs to verif[...]
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Page 6
EM-422 User’s Guide 6 The following table describes the LEDs on the EM-42 2 panel. 4 T ran sceiver Removal Use the following steps to remove an XFP transceiver . 1 Open the transceiver ’s latch (latch styles vary). 2 Pull the transceiver o ut of the slot. LED Color Status Description LNK/ ACT Blue On The port is connected to an Ethernet device.[...]
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Page 7
7 EM-422 User’s Gu ide 5 T roubleshooting V None of the lights turn on af ter I install the EM- 422 and connect it to a network de vice. • Make sure the EM-422 is properly installed in a switch. • Make sure that you are using the XFP tran sceivers to con- nect the EM-422 to other device(s). • Make sure the power source is turned on. • If [...]
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Page 8
EM-422 User’s Guide 8 7 Safety W arnings 1 For your safety , be sure to read and follow all warning notices and instructions. • Do NOT use this product near water , for example, in a wet basement or near a swimming pool. • Do NOT expose your device to dampness, dust or corrosive liquids. • Do NOT store things on the device. • Do NOT insta[...]
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Page 9
9 EM-422 User’s Gu ide • This product is recyclable. Dispose of it properly . 8 Legal Information Certificatio ns Federal Communications C ommission (FCC) Interference St a tement This device complies with Part 15 of FCC rules. Operation is subject to the following two conditions: • This device may not cause harmful int erference. • This de[...]
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Page 10
EM-422 User’s Guide 10 T aiwanese BSMI (Bureau of Standards, Metrology and Inspection) A W arning: Notices Changes or modifications not expressl y approved by the party responsible for compliance could void the user's authority to operate the equipment. This Class A digital apparatus complies with Canadian ICES-003. Cet appareil numérique d[...]
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Page 11
11 EM-422 User’s Gu ide Note Repair or replacement, as provided under this warranty , is the exclusive remedy of the purchaser. This warranty is in lieu of all other warranties, express or implied, including any implied warranty of merchantability or fitness for a particular use or purpose. ZyXEL shall in no event be held liable for indirect or c[...]
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Page 12
EM-422 User’s Guide 12 Published by ZyXEL Communications Corporation. All rights reserved. Disclaimer ZyXEL does not assume any liability aris ing out of the application or use of any products, or software described herein. Neither does it convey any license under its patent rights nor the patent right s of others. ZyXEL further reserve s the rig[...]
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Page 13
13 EM-422 User’s Gu ide Czech Republic • E-mail: info@cz.zyxel.com • T elephone: +420-241-091-350 • Fax: +420-241-091-359 • Web: www .zyxel. cz • Regular Mail: ZyX EL Co mmu nica ti ons , Cze ch s .r .o., Modr an ská 62 1, 1 43 01 Praha 4 - Modrany , Ceská Republika Denmark • Support E-mail: support@zyxel.dk • Sales E-mail: sales@[...]
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Page 14
EM-422 User’s Guide 14 • T elephone: +36-1-3361649 • Fax: +36-1-3259100 • Web: www .zyxel.hu • Reg ul ar M ail : ZyXEL Hungary , 48, Zoldlomb S tr ., H-1025, Budapest, Hungary India • Support E-mail: support@zyxel.in • Sales E-mail: sales@zyxel.in • T elephone: +91-1 1-30888144 to +91-1 1-30888153 • Fax: +91-1 1-30888149, +91-1 1-[...]
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Page 15
15 EM-422 User’s Gu ide • Web: www .us.zyxel.com • FTP: ftp.us.zyxel. com • Regular Mail: ZyX EL Co mmu nica ti ons Inc. , 1 130 N . M iller S t., Anaheim, CA 92806-2001, U.S. A. Norway • Support E-mail: support@zyxel.no • Sales E-mail: sales@zyxel. no • T elephone: +47-22-80-61-80 • Fax: +47-22-80-61-81 • Web: www .zyxel. no • [...]
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Page 16
EM-422 User’s Guide 16 • Reg ul ar Ma il : ZyXEL Communications, Art e, 21 5ª planta, 28033 Madri d, Spa i n Sweden • Support E-mail: support@zyxel.se • Sales E-mail: sales@zyxel.se • T elephone: +46-31-744-7700 • Fax: +46-31-744-7701 • Web: www .zyxel.se • Reg ul ar M ail : ZyXEL Communications A/S, Sjöp orten 4, 41764 Göteborg,[...]
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Page 17
17 EM-422 User’s Gu ide[...]