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Contents

553-2201-117

Standard 10.00

January 2002

Attendant console operation . . . . . . . . . . . . . . . . .

Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Reference list . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M1250/2250 configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

QMT2 feature disabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

QMT2 feature enabled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Meridian 1 Attendant PC configuration . . . . . . . . . . . . . . . . . . . . . . . .

M1250/2250 feature key modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M1250/2250 console diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M1250 failure codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M2250 failure codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Attendant console features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Time and date . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Trunk Group Busy indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Incoming Call Indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Night service/busy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Enhanced Night Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Attendant Blocking of DN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Attendant and Network Wide Remote Call Forward . . . . . . . . . . .

Network Attendant Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Call processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ICI key assignments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Feature keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Call Waiting indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alarm indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Emergency Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Attendant Administration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Collect Call Blocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Alarm Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Digital Trunk Interface – CIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DPNSS Executive Intrusion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Attendant Monitor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Busy Verify and Barge-in Enhancement . . . . . . . . . . . . . . . . . . . .

Attendant Forward No Answer . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Содержание Meridian 1 Series

Страница 1: ...tal device pursuant to Part 15 of the FCC rules and the radio interference regulations of Industry Canada These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may ca...

Страница 2: ......

Страница 3: ...1C and references to previous software releases October 1997 Standard release 8 00 This document is reissued to introduce Meridian 1 Attendant PC Software August 1996 Standard release 7 00 This document updated for X11 Release 22 0x July 1995 Standard release 6 00 This document is reissued to include updates and changes for X11 Release 21 0 December 1994 Standard release 5 00 This document is reis...

Страница 4: ...mber 1990 This document is reissued to include updates and changes for X11 Release 16 0x December 1989 Revised to incorporate corrections and updated information July 1989 Removed all references to MJ1250 console February 1989 Standard for M1250 Console issued ...

Страница 5: ... Reference list 17 Feature description 18 Physical details 18 Keyboard layout 18 Function keys 22 Switches 24 Shift key 24 Handset and headset jacks 24 LCD indicators 24 Display screen messages 25 Connections 25 Local console controls 26 Busy Lamp Field Console Graphics Module 27 Installation 27 Power requirements 28 Display backlight power supply option 28 ...

Страница 6: ...d date 46 Trunk Group Busy indicators 47 Incoming Call Indicators 48 Night service busy 48 Enhanced Night Service 48 Attendant Blocking of DN 49 Attendant and Network Wide Remote Call Forward 49 Network Attendant Services 50 Call processing 50 ICI key assignments 50 Operating keys 51 Feature keys 52 Call Waiting indicator 53 Alarm indicators 53 Emergency Transfer 53 Attendant Administration 54 Col...

Страница 7: ...Contents Page 7 of 64 Attendant Consoles Description Semi Automatic Camp On 57 Series Call 58 Powering and reset 59 Index 61 ...

Страница 8: ...Page 8 of 64 Contents 553 2201 117 Standard 10 00 January 2002 ...

Страница 9: ...Consoles Description 10 About this document This document is a global document Contact your system supplier or your Nortel Networks representative to verify that the hardware and software described are supported in your area ...

Страница 10: ...Page 10 of 64 About this document 553 2201 117 Standard 10 00 January 2002 ...

Страница 11: ...elephone traffic control in the Meridian 1 Each provides attendants with specialized features that increase the speed and ease of call processing This document describes the M1250 and M2250 attendant consoles and the Meridian 1 Attendant PC Software application The M1250 and M2250 consoles are functionally compatible with the QCW4 Attendant Console The M1250 is designed to work in analog mode and ...

Страница 12: ... a Windows 95 operating system environment The M2250 attendant console is not required to run the Meridian 1 Attendant PC Software application Refer to the Meridian 1 Attendant PC Software User Guide for more information on Meridian 1 Attendant PC Software Refer to Table 1 for engineering and ordering codes for the types and colors of the M1250 and M2250 attendant consoles For more ordering inform...

Страница 13: ...44 not available in North America M2250 NT6G00AF 35 Chameleon gray ash A0393450 M2250 NT6G00AE 98 BTS dark gray A0349187 not available in North America BLF CGM NT3G40AB 35 Chameleon gray ash A0375234 BLF CGM NT3G40AB 98 BTS dark gray A0349423 not available in North America Adjustable stand NT3G30AA 35 Chameleon gray ash A0348780 Adjustable stand NT3G30AA 98 BTS dark gray A0348778 not available in ...

Страница 14: ...e keys for a total of 20 An optional supporting stand that can be adjusted to nine different positions A handset and headset volume slider control situated below the dial pad A physical connection to a serial data port through a subminiature D type female connector on the console back wall This permits connection of the console to the serial port of a personal computer An optional Busy Lamp Field ...

Страница 15: ...Page 15 of 64 Attendant Consoles Description Time and date system download on the M2250 Alert tone volume and frequency selection Electret or carbon transmitter support Power Fail Transfer switch Keyclick M2250 only ...

Страница 16: ...Page 16 of 64 Introduction 553 2201 117 Standard 10 00 January 2002 ...

Страница 17: ...ion keys 22 Switches 24 Shift key 24 Handset and headset jacks 24 LCD indicators 24 Display screen messages 25 Connections 25 Local console controls 26 Busy Lamp Field Console Graphics Module 27 Installation 27 Power requirements 28 Display backlight power supply option 28 Reference list The following are the references in this section Telephone and Attendant Console Installation 553 3001 215 ...

Страница 18: ... shows rear left side and bottom views of the consoles These illustrations show where to find the various components Physical details The attendant console dimensions are as follows Keyboard layout Refer to Table 2 on page 22 for the description of keys and Figures 1 2 and 3 for the location of switches and keys mentioned in this section Width 425 mm 16 75 in Depth 245 mm 9 6 in Height front 25 mm...

Страница 19: ...con key numbering for test identification purposes only not designated on the console Columns Power Fail Transfer Switch in base of console Handset or headset jacks in both sidesof console 25 pin subminiature D type male connector for cable connecting console to distributing frame Note Rows and columns are labeled with numbers and letters respectively in order to allow textual references when iden...

Страница 20: ...ng for test identification purposes only not designated on the console Columns Power Fail Transfer Switch in base of console Handset or headset jacks in both sidesof console 25 pin subminiature D type male connector for cable connecting console to distributing frame Note Rows and columns are labeled with numbers and letters respectively in order to allow textual references when identifying the loc...

Страница 21: ...ta port Handset Headset jacks Handset Headset jacks Protective plastic cover to be installed when connector is not in use Left side view Handset Headset jacks same on opposite side Backlighting ON OFF slider switch Bottom view Front edge of console Backlighting slider switch Power Fail Transfer switch PFT Knockout for access to J4 connector BLF CGM On Off Adjustable standscrew mounting point total...

Страница 22: ...functions Part 1 of 2 Key number as shown in Figures 1 and 2 Key Function 1 Centralized Attendant Service CAS File 2 Prime function normal Position Busy feature Level 1 function Shift Night Service feature 3 Prime function normal Selects display screen line 2 for scrolling Level 1 function Shift Selects the Options menu on the display screen Alternating between the idle and active call display M22...

Страница 23: ... user must enter a 4 digit password and press on the dial pad Alternating between the idle and active call display M2250 only From the active call display press this key to show the idle display 7 Prime function normal Signal Source feature key Level 1 function Shift and Conf Busy Lamp Field key Used with the Busy Lamp Field Console Graphics Module as CGM key 8 Prime function normal Signal Destina...

Страница 24: ...le beneath the faceplate in the recessed area shown by the arrows See Figures 1 and 2 The console accepts both carbon and electret handsets or headsets and automatically adapts itself to each type Note Electret headsets and handsets are polarity sensitive and must be correctly inserted into the jack LCD indicators The LCD indicators on the M1250 and M2250 display triangular symbols that normally p...

Страница 25: ...ted in the console also prevents interchanges between the line cord and the serial data port connectors the serial data port in the console has a jack connector Identical two prong G3 type connectors are provided on each side of the console body to permit handset or headset connection at either side of the console The attendant console is compatible with both carbon and electret handsets or headse...

Страница 26: ...the Options menu From the Options menu four line mode can be changed to two line mode for easier viewing and to use larger fonts The pitch and volume of the buzz tone on the console can be adjusted by the user Any one of 15 languages English French Spanish German Italian Norwegian Irish Turkish Katakana P R C People s Republic of China Taiwan Korean Polish Czech Slovak or Hungarian can be chosen f...

Страница 27: ...s vacation or illness when the person is due to return and an alternate extension where calls to the person should be directed display a company logo display graphics display text in any one of eight languages have its screen contrast adjusted for easy viewing Installation The BLF CGM mounts on the back of the attendant console and is held on by snapfits and screws It is connected to the console u...

Страница 28: ...acklighting for the BLF CGM display an external floating 16 V dc 300 mA power supply A0367601 must be cabled in at the local Main Distribution Frame MDF at a maximum of 35 m 115 ft from the attendant console Display backlight power supply option An optional 16 V dc power supply A0367601 can be installed to the MDF to improve the display backlight brightness ...

Страница 29: ...re key modes 33 M1250 2250 console diagnostics 35 M1250 failure codes 41 M2250 failure codes 43 Attendant console features 46 Time and date 46 Trunk Group Busy indicators 47 Incoming Call Indicators 48 Night service busy 48 Enhanced Night Service 48 Attendant Blocking of DN 49 Attendant and Network Wide Remote Call Forward 49 Network Attendant Services 50 Call processing 50 ICI key assignments 50 ...

Страница 30: ...wer 57 Semi Automatic Camp On 57 Series Call 58 Powering and reset 58 Reference list The following are the references in this section Networking Features and Services 553 2901 301 Features and Services 553 3001 306 Administration 553 3001 311 This section presents an overview of operating procedures for the M1250 and M2250 attendant consoles The attendant console faceplate layout is shown in Figur...

Страница 31: ...5 in the following publications Features and Services 553 3001 306 Administration 553 3001 311 QMT2 feature disabled When the QMT2 feature is disabled the following conditions apply If the console is not in Shift mode keystrip AK is inactive If the console is in Shift mode the keys in strip AK function as Trunk Group Busy TGB keys if configured in the system software If the operator presses any of...

Страница 32: ... configuration The Meridian 1 Attendant PC Software application operates with the Attendant PC Unit See Figure 4 on page 32 The Attendant PC Unit is typically installed under the attendant s PC monitor and provides connection to the Meridian 1 MDF and PC communications port The Attendant PC Unit hardware allows the software to communicate with the Meridian 1 and simulate M2250 operation through a ...

Страница 33: ...s and remains on throughout all options and menus It goes out only upon return to normal call processing All call processing keys that do not have a dual function perform normally while the console is in Level 1 mode Press the Shift key again to return to normal call processing On early releases of the M1250 attendant console press the pound key to return from any menu on the display screen to the...

Страница 34: ...Normal Selects line 3 of the display screen for scrolling Shift F1 Level 1 Selects the Options menu Shift F2 Level 1 Turns down the alerter speaker volume Shift F3 Level 1 Turns up the alerter speaker volume Shift F4 Level 1 Selects the Diagnostic menu A password must be entered on the M2250 before the Diagnostics menu appears Example Press Shift and F1 in sequence Options menu The Options menu is...

Страница 35: ...oles 1 Press the Shift key 2 Press the key function key F4 3 On M2250 consoles enter password 9999 4 Press the asterisk key to enter Diagnostics menu 1 To toggle between menu 1 and menu 2 press the asterisk key 5 To quit the Diagnostics mode press the pound key Follow the procedures listed below to perform the Diagnostic tests Figure 5 Console Diagnostics menus DIAGNOSTICS MENU 1 KEYBOARD 4 ICs 2 ...

Страница 36: ...ss 1 2 Press any key on the console The display shows the key s location code indicating that the key is functional Table 2 shows the key location codes 3 Press the pound key to exit and return to Diagnostics menu 1 Table 2 Key location codes for console diagnostics 22 21 20 34 54 60 61 62 00 10 70 80 90 01 11 71 81 91 02 12 72 82 92 03 13 23 63 73 83 93 04 14 24 64 74 84 94 05 15 25 35 45 55 65 7...

Страница 37: ...the test a connector 25 way D plug with pin 2 shorted to pin 3 should be inserted in RS 232 port A failure code is displayed if any error is found 1 From Diagnostics menu 1 press 3 The display shows OK if the test is successful 2 Press the asterisk to repeat the loopback test 3 Press the pound to exit and return to Diagnostics menu 1 ICS Use this procedure to check the functionality of any periphe...

Страница 38: ...2 Follow these instructions in any order Press key 1 to turn the buzz and auxiliary tones ON Press key 2 to turn the buzz and auxiliary tones OFF Press key 3 to increase the pitch of the buzz and auxiliary tones Press key 4 to decrease the pitch of the buzz and auxiliary tones Press key 5 to increase the volume of the buzz and auxiliary tones Press key 6 to decrease the volume of the buzz and auxi...

Страница 39: ...tting will return to its original state after a timeout period of about three minutes 1 From Diagnostics menu 2 press 3 2 Press the asterisk to toggle between QMT2 ON and OFF 3 Press the pound to exit and return to Diagnostics menu 1 Control Use this procedure to turn the conference bridge analog control gates the auxiliary tone channel and the Code Blue Relay ON or OFF Note that the auxiliary con...

Страница 40: ... Press key 5 to toggle the auxiliary tone control between ON and OFF Press key 6 to toggle the relay control between ON and OFF 3 Press the asterisk to turn all the control gates OFF 4 Press the octothorp to exit and return to Diagnostics menu 1 Reset Use this procedure to perform a hard reset of the console All devices and memory on the UIP and ASIP boards are reset as if the power cord were unpl...

Страница 41: ... there is an electrical fault in the console and it should be returned Note Log the failure code with the returned unit as the code gives an indication of which component has failed 10 H The RAM IC U10 is faulty Same as for 20H 08H A key in column A is stuck Unplug the line cord Free the key that is stuck Plug in the line cord If the failure code still appears the console is faulty and should be r...

Страница 42: ... column F is stuck Same as for 08H C0H The SRC micro is not responding Same as for 20H 90H The RS 232 port has failed the loopback test Check to see if the loopback connector is inserted If not insert it and perform the loopback test again If the failure code still appears turn the console off and on while the connector is inserted Redo the loopback test If the failure code still appears the conso...

Страница 43: ...he failure code still appears there is an electrical fault in the console and it should be returned Note Log the failure code with the returned unit as it gives an indication of which component has failed 20H UIP The RTC U16 is faulty Same as for 40H 10H UIP The RAM IC U1 is faulty Same as for 40H 08H UIP A key in column A is stuck Unplug the line cord Free the key if it is stuck Plug in the line ...

Страница 44: ...t insert it and perform the loopback test again If the failure code still appears turn the console off and on while the connector is inserted Perform the loopback test again If the failure code still appears the console is faulty and should be returned 90H ASIP ASM A44 3 U1 is faulty Same as for 40H 88H ASIP Secondary A44 2 U2 is faulty Same as for 40H 84H ASIP Primary A44 1 U1 is faulty Same as f...

Страница 45: ...However if the microprocessor is faulty the readings may be unreliable or misleading Failure code A0H is always shown if the loopback test has not been performed Refer to Data Port on page 37 B7 B6 B5 B4 B3 B2 B1 B0 0 PSG RTC RAM KEYS c2 c1 c0 1 ASIP RS 232 A44 3 A44 2 A44 1 UART RAM Refers to key s column number Note Bit 7 indicates whether the failure occurred on the user interface printed circu...

Страница 46: ...s on 2 Press F1 to enter the Options menu 3 Select option 4 set time The current time appears in the 24 hour format hours minutes seconds 4 To exit without changing the time press the octothorpe key To enter a new time use the dial pad keys to overwrite the displayed settings When the new time is typed in the cursor moves from position to position and then to the next entry field If more than six ...

Страница 47: ...vice calls Table 6 Setting the date M1250 Step Action Response 1 Press the Shift key 2 Press F1 to enter the Options menu 3 Select option 5 set date The current date appears in the day month year format 4 To exit without changing the date press the octothorpe key To enter a new date use the dial pad keys to overwrite the displayed settings As in the new date is typed in the cursor moves from posit...

Страница 48: ...the Busy key puts the attendant console into Position Busy mode When the Shift key is on pressing the Busy key puts the console into Night Service mode To return to normal operating mode press the Busy key again In a multiconsole system activating Night Service mode will busy out all attendant consoles in the system Enhanced Night Service This feature allows Public Network Central Office CO Direct...

Страница 49: ...ceive or make calls Therefore the requesting DN could be busy when the attendant establishes the requested call To prevent the requesting DN from being busy when the requested call is completed the attendant can block the DN from making or receiving calls To callers attempting to contact the blocked DN the line appears busy To a caller attempting to use the blocked DN the line is connected to the ...

Страница 50: ...ents An ICI key may be assigned more than one call type Refer to Administration 553 3001 311 If the Attendant Call Party Name Display ACPND feature is equipped all incoming calls are displayed by calling party name or external call source Examples of possible ICI key assignments and displays are given in the following listing Attendant Intercept indicates that a call is being made by a station to ...

Страница 51: ...is automatically presented to an idle loop key Subsequent calls are queued and presented to a loop key when a loop becomes idle Call selection is made by pressing the required ICI key This action causes the call which was automatically presented to the loop key by the system to be replaced by the selected incoming call In all cases when the loop key is pressed all ICIs go dark except the one assoc...

Страница 52: ...call held at the console allowing the attendant to speak privately with the calling party Exclude Source excludes the calling party from an established call held at the console allowing the attendant to speak privately with the called party Feature keys Any of the keys on keystrip FK can be assigned any of the optional features in the list that follows except the Barge In and Busy Verify features ...

Страница 53: ...nd Services 553 3001 306 for more information An optional buzz is available to indicate when the first call enters the queue The number of waiting calls can be viewed on the LCD screen by pressing a key assigned on the attendant console On the M2250 the number of waiting calls can be displayed continuously on line 4 of the display if defined in LD15 and selected from the Options menu Alarm indicat...

Страница 54: ... The Collect Call Blocking feature enables a Meridian 1 administrator to block long distance collect call service calls on incoming Direct Inward Dialing DID and Public Exchange Central Office trunks analog or DT12 Under the following conditions the Meridian 1 sends a special answer signal to the Central Office to indicate that collect calls cannot be accepted The Collect Call Blocking CCB package...

Страница 55: ...larm messages generated by the Meridian 1 system and its Application Processors It also clarifies existing alarm messages and makes Attendant Console alarm lamp signals more meaningful The Meridian 1 system has three levels of alarm critical major and minor The Attendant Console alarm lamp will light when critical alarms occur Digital Trunk Interface CIS The CIS DTI trunk feature provides connecti...

Страница 56: ...1 PBX will accept an EI activation request from an ordinary set on a third party PBX Attendant Monitor Attendant Monitor is a customer defined option which allows the attendant to monitor in listen only mode any established call involving a set or trunk on the customer with or without the connected parties being aware that monitoring is taking place depends on the configuration of the new customer...

Страница 57: ...cles Attendant Forward No Answer is selectable on a customer basis and is included in the package 134 AFNA Semi Automatic Camp On Semi Automatic Camp On is an option to the current camp on operation When the party to which a call is camped on becomes free the attendant is recalled first instead of the wanted party being rung immediately The modification is implemented under the Semi Automatic Camp...

Страница 58: ... attendant activates the feature by pressing the SACP key before camping on the call If the SACP key is pressed twice the associated lamp goes dark and the SACP feature becomes inactive for the call Series Call The Series Call feature causes a source call either an attendant answered incoming call or an attendant originated trunk call that has been extended to an internal destination party to be r...

Страница 59: ... fault condition is detected the console enters the maintenance mode Position Busy and a failure message is displayed on the LCD screen Note 1 The failure code format is XXH where XX is a two digit hex code indicating where the fault has been detected Refer to Tables 3 and 4 for explanations of the failure codes Note 2 When the BLF CGM is attached to the console an additional 16 V unregulated powe...

Страница 60: ...Page 60 of 64 Attendant console operation 553 2201 117 Standard 10 00 January 2002 ...

Страница 61: ... 48 auxiliary tone channel test 38 B Barge In feature 53 57 BK keystrip 31 BLF CGM Busy Lamp Field Console Graphics Module CGM Mode keys 23 described 27 installing 27 power requirements 28 testing functionality of 38 Busy Lamp Field Console Graphics Module See BLF CGM Busy Lamp Field Console Graphics Module Busy Verify feature 52 57 C Call Forward 51 Call Waiting indicator 53 Call Waiting status m...

Страница 62: ... See also softkeys features assigning to keys 52 M1250 M2250 attendant consoles 14 46 modifying 54 permanently assigned to keys 51 FI keystrip 51 FK keystrip assignable features 52 permanently assigned features 51 Foreign Exchange display 50 Fully Restricted Station indication 50 function keys 22 H handset headset jack 24 25 headsets handsets 24 Hold key 52 I ICI Incoming Call Identification keys ...

Страница 63: ...scription 11 operating procedures 30 operation 31 physical layout 18 rear left side bottom views 21 M2250 attendant console automatic time date download 46 Diagnostic menu password protection 23 displaying number of waiting calls 53 failure codes 43 top view 20 maintenance mode See Position Busy mode major alarm indication status message 25 53 Meridian 1 connections to M2250 26 messages LCD displa...

Страница 64: ...rt 42 See also data port S S status message 25 scrolling LCD display screen 22 34 Semi Automatic Camp On 57 Series Call 58 Shift key purpose location 24 Signal Destination key 23 52 Signal Source key 23 52 softkeys alternate functions 34 definitions functions 22 modes 33 Speed Call feature 53 status messages 25 submenus 33 T TGB Trunk Group Busy indicators 47 TGB Trunk Group Busy keys accessing 33...

Страница 65: ......

Страница 66: ...s and the radio interference regulations of Industry Canada These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communicatio...

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