Mediant 1000B Gateway & E-SBC 
Hardware Installation Manual  4  Document #: LTRT-41441 
5.5.2  Connecting the PSTN Fallback for E1/T1 Trunks ................................................... 55 
5.6  Connecting the RS-232 Serial Interface ................................................................. 56 
5.7  Connecting a Dry-Contact Relay Alarm System..................................................... 57 
5.8  Connecting to Power .............................................................................................. 59 
6  Hardware Maintenance .................................................................................... 61 
6.1  Chassis Slot Assignment for Modules .................................................................... 61 
6.1.1  Front-Panel Module Slot Assignment ..................................................................... 61 
6.1.2  Rear-Panel Module Slot Assignment ...................................................................... 62 
6.2  Installing and Replacing Modules ........................................................................... 63 
6.2.1  Front-Panel I/O Modules ......................................................................................... 63 
6.2.1.1  Replacing Blank-Panel Slot Covers with I/O Modules ............................. 63 
6.2.1.2  Replacing I/O Modules ............................................................................ 64 
6.2.2  OSN Server Modules .............................................................................................. 68 
6.2.2.1  Replacing Blank-Panel Slot Covers with OSN Server Modules .............. 68 
6.2.2.2  Replacing OSN Server Modules .............................................................. 70 
6.2.3  Replacing the Fan Tray Module .............................................................................. 72 
6.2.4  Power Supply Module ............................................................................................. 74 
6.2.4.1  Installing an Optional, Secondary Power Supply Module ....................... 75 
6.2.4.2  Replacing a Power Supply Module .......................................................... 76 
A  Open Solution Network Server Platform ........................................................ 77 
A.1  OSN Server Offerings ............................................................................................ 77 
A.2  Physical Description of OSN Server Modules ........................................................ 78 
A.2.1  OSN3B and OSN4 Modules ................................................................................... 78 
A.2.1.1  Port Description ....................................................................................... 78 
A.2.1.2  LED Description ....................................................................................... 80 
A.2.2  OSN3 Module .......................................................................................................... 81 
A.2.2.1  Port Description ....................................................................................... 81 
A.2.2.2  LED Description ....................................................................................... 83 
A.2.3  HDMX Module ......................................................................................................... 85 
A.3  Installing an Operating System on the OSN Server ............................................... 86 
A.3.1  Cabling OSN3B/OSN4 for Installing Operating System ......................................... 86 
A.3.2  Cabling OSN3 for Installing Operating System ....................................................... 87 
A.4  Connecting Remotely to OSN3 using Windows ..................................................... 88 
A.4.1  Modifying the OSN3 IP Address ............................................................................. 88 
A.4.2  Connecting through Remote Desktop ..................................................................... 89 
B  Module Hardware Revision Compatibility ...................................................... 91