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Table of contents for the manual
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F01U217863(LIT000404000) Rev 04 4/2011 Models Include: MH-300 MH-300L MH-302 MH-302L MH-402 MH-402L Modular Series (MH) Headsets and Headphones User Instructions[...]
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P ROPRIETARY N OTICE The product information and design disclosed herein were originated by and are the property of Bosch Security Systems, Inc. Bosch reserve s all patent, proprietary design, manufac turing, reproduction, use and sales rights thereto, and to any article disclosed the rein, except to the exte nt rights are expressly granted to othe[...]
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A vailable MH Series Accessories Ear Cushion ................ ............ ........ ............ ........... ........... ........... ........... ........... ......... .... ....... ........... ............ ........... ........... ........... ........... ........ F01U149725 Dynamic Microphone W indscree n ............. ...............................[...]
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Table of Contents INTRODUCTION ............................. .............................................. ....................................... ................. 3 Important Safety In structions ................................................................................................. ............................. 3 General Descri ption [...]
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CONNECTORS ........... ......................................................................................................... ................. 25 XLR Connector s ................................................................................................................ ................................ 25 Pig Tail Connect or ...............[...]
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List of Figures FIGURE 1. Models MH-300 and MH-300L ..................................................................................................... ....... 5 FIGURE 2. Models MH-302, MH-302L, MH -402, and MH-402L ......................................................................... 6 FIGURE 3. Battery Charger Reference Diagram ...........[...]
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3 CHAPTER 1 Intr oduction Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructi ons. 5. This headset is capable of producing sou nd pressure levels in excess of 100dB SPL. 6. Refer all servicing to qualified service personnel. Se rvicing is required when th e headset is d[...]
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4 Modular Series (MH) Headsets and Headphones User Manual Featur es Three (3) Headset Frame Options - The MH Series gives you three (3) options when sel ecting the t ype of headset for your environm ent: • Single-Sided Head set without AN R (model MH-300 and MH-300L) • Dual-Sided Headset without ANR (model MH-302 and MH-302L • Dual-Sided Head[...]
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5 Introduction MH-300/MH-300L (no ANR) Single-Sided Headset/Headphone NOTE: The MH-300L is a listen-only headphone. It does not have a microphone. FIGURE 1 1. Models MH-300 and MH-300L 1. Headset Frame 2. Microphone Module or Auxiliary Audio Input Module 3. Te m p l e P a d 4. Headband Pad 5. Ear Cushion 6. W indscreen 7. Side Cushions[...]
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6 Modular Series (MH) Headsets and Headphones User Manual MH-302/MH-302L (no ANR) & MH-402/MH-402L (ANR capable) Dual-Sided Headset/Headphone NOTE: The MH-302L and the MH-402L are listen-only headphones. They do not have a microphone. FIGURE 12. Models MH-302, MH-302L, MH-402, and MH-402L 1. Headset Frame 2. Microphone Module or Auxiliary Audio[...]
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7 Introduction Battery Char ger NOTE: For more information, see “Battery Module” on page 21. 1. Operation LED 2. Module Release Button 3. Power Supply Connector Battery Char ger Power Supply FIGURE 13. Battery Char ger R eference Diagram FIGURE 14. S tandard Power Supply and Plug Adap ters S tandard Power Supply a a. The MH-402 and MH-402L come[...]
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8 Modular Series (MH) Headsets and Headphones User Manual[...]
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9 CHAPTER 2 Configuration, Operation and Maintenance The MH Series Headsets and Headphones were designed for use in multiple applicat ions. As such, when using the headsets and headphones specific for you application, refer to the following sections to verify the proper configuration and settin gs. Befor e First Use Battery Charging (MH-402 Series)[...]
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10 Modular Series (MH) Headsets and Headphones User Manual To replace a module , do the following: 1. Align the mounting tab with the mounting tab hole. 2. Slide the module into place. 3. Press the module down, snapping it into the ear cup.[...]
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11 Configuration, Operation and Mainten ance Configuration NOTE: The MH Series headset and headphones have been confi gured for use in the most common appli cations. W e recommend the configuration not be changed unless absolutely neces sary . The following i nformation detail s configuration settings for: • Speaker V olume (see “Configure the [...]
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12 Modular Series (MH) Headsets and Headphones User Manual Configur e the Speaker V o lume Speaker V olume is configured using dip switch settings located on the microph one module and the listen-only module. To adjust the speaker volume , do the following: > Using a small flathead screwdrive r (or other device), adjust the speaker volume . See [...]
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13 Configuration, Operation and Mainten ance Configure Speak er Mode Audio on the headset can be configured to be heard either Mono, Left Only , or S tereo. This means it can come from both sides of the headset or from the left side only . NOTE: The stereo option can only be used w ith the 5-pin XLR connector versions. This configuration is done th[...]
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14 Modular Series (MH) Headsets and Headphones User Manual Configure ANR (MH-402 and MH-402L Only) ANR is used to reduce unwanted noise in the headset from the surrounding environment. The ANR switch is locat ed on the left ear cup, as seen in Figure 15. To turn AN R on , do the following: > On the left ear cup, move the ANR switch to the up pos[...]
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15 Configuration, Operation and Mainten ance Operation and Maintenance To operate the MH Series headset , do the foll owing: St e p 1 Adjust the headset for pro per fit and comfort. See “Headset Adjustment and Sizing” on page 15. St e p 2 Adjust the microphone for proper use. St e p 3 T urn on ANR . See “Configure ANR (MH-402 and MH-402L Only[...]
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16 Modular Series (MH) Headsets and Headphones User Manual The MH-302/302L and th e MH-402/402L have two (2) ear cup cu shions and a headband cushion, while the MH-300 /300L has one (1) ear cup cushion, one (1) temple pad, and a headband cushion. To replace the ear cup cushion , do the following: 1. Grasp the worn ear cushion and carefully pull it [...]
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17 Configuration, Operation and Mainten ance To replace the headband cushion , do the following: 1. Grasp the headband cushion . 2. Pull the worn cushion off the headband. 3. Remove the protective paper from the sticky side of the new headband cushion. NOTE: The headband is affixed to the headband with adhesive tape. 4. Align the new headband cushi[...]
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18 Modular Series (MH) Headsets and Headphones User Manual To replace the temple pad cushion , do the following: 1. Grasp the temple pad cushion . 2. Pull the worn cushion off. 3. Remove the protective paper from the sticky side of the new temple pad cushion. NOTE: The t emple pad is affixed to the headband w ith adhesive tape. 4. Align the new tem[...]
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19 Configuration, Operation and Mainten ance Replace the Windscreen To replace the wind scr een , do the following: 1. Remove the worn windscreen from the microphone and discard. 2. Gently pull th e new windscreen over the microphone. Car e and Maintenance Clean the Headset When cleaning your head set, do the following: • use a soft, slightly dam[...]
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20 Modular Series (MH) Headsets and Headphones User Manual[...]
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21 CHAPTER 3 Battery Module Battery Module The battery modul e is only used with the MH-402 and MH-402L ANR head set/headphone. By u sing the battery and enablin g the ANR, the audio quality is markedly enhanced. NOTE: The battery char ger uses a universal power pack with a mini-USB connector that is compatible with many devices that accept the con[...]
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22 Modular Series (MH) Headsets and Headphones User Manual Charge the Battery IMPORT ANT : Before installing the battery for the first time, char ge the battery for at least an hour and a half to ensure a fully charged unit. A fully charged battery lasts approximately 40 hours between charges. The battery charger has an LED, shown in Figu re 17, th[...]
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23 Battery Module To change the connection adap ter for the power module , do the followin g: 1. While pressing the adapter lock button, turn the adapter count er-clockwise to release the adapter . 2. Replace the current adapter with the desired power module adapter . 3. Tu r n t h e new adapter clockwise to lock it in place. To charge a battery , [...]
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24 Modular Series (MH) Headsets and Headphones User Manual 3. Align the mounting tab with the mount ing tab hole on the battery char ger . 4. Slide the battery modu le into place. 5. Press down on the battery module , snapping it into the ear cup. The LED lights red while the battery is charging, and lights green when it is finished char gin g.[...]
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25 CHAPTER 4 Connectors XLR Connectors FIGURE 18. 4-Pin XL R Connector Femal e and Male TA B L E 3 . 4-Pin XLR Pin Out Pin Wire Co lo r Description 1B l u e M I C - 2 White MIC + 3 Black/Outer Shield SPK - 4 Y ellow/Red R SPK and L SPK (dual) Case Inner Shield MIC SHIELD[...]
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26 Modular Series (MH) Headsets and Headphones User Manual Pig T ail Connector Pigtail connectors give you max imum flexibility in th e type of connector you want to use. T able 5shows the wi re colors and descriptions for the pigtail. FIGURE 19. 5-Pin XL R Connector Femal e and Male TA B L E 4 . 5-Pin XLR Pin Out Pin Wire Co lo r Description 1B l [...]
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27 Connectors Quick Disconnect The Quick Discon nect allows you to quickly switch co nnector types without having to sw itch headsets, saving time and space when you are on the go. To disconnect the quick disconnect connector , do the following: 1. Holding the quick di sconnect in both hands, gently pu sh each connector end toward each other (see F[...]
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28 Modular Series (MH) Headsets and Headphones User Manual[...]
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29 CHAPTER 5 Specifications Specifications Speake r T ransducer T ype ..................... ................. .............. .............. ............... .............. .............. ... ........... .............. .............. ........ Dynamic Sensitivity ................. .............. .............. ............... .............. ..........[...]
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30 Modular Series (MH) Headsets and Headphones User Manual[...]
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31 CHAPTER 6 T r oubleshooting and F AQs PROBLEM SOLUTION Where do I send my headset for r epair? Attn: Customer Service Bosch Communications, Inc. 8601 East Cornhusker Hwy . Lincoln, NE 68507 U.S.A Please include a copy of receipt, if available. Along with the unit, please include your name, billing, and shipping address, telephone number, and a b[...]
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I need parts for my headset. • Contact customer service for the part number you are l ooking for . How long will it take my headset to be r epaired? Repair duration is usually 7 to 10 working days plus shipping time back to the customer . PROBLEM SOLUTION[...]