Item specifics
| Condition: |
| Item specifics Condition:
Used: An item that has been previously used. The item may have some signs of cosmetic wear, but is fully operational and functions as intended. The Peripheral Module houses the plug-in boards that provide the interface to end-user equipment. The number of positions in a shelf depends on the iS3000 model. Each pair shares 32 time-slots of the switching network via a dedicated 2Mbits/s backplane bus. A few special positions have access to a full 2Mbits/s group. The different types of available plug-in boards can be freely mixed across the different positions. A plug-in board can be inserted in a free position without needing to disconnect the power or to restart the system. Each PM has its own AC/DC Power-Supply Unit (PSU) to keep the risk of common failure to an absolute minimum. |

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