Connections - Mitel CPDM3 Installation Manual

Installation Guide
2 Select Other Settings > Advanced Configuration in the menu on the
Configuration page.
3 Select Power supply in the menu on the Advanced Configuration page.
4 Select setting in the drop-down list (Internal PSU only, External PSU only,
Internal and external PSU or Internal PSU and external battery).
5 Click "Activate".

4.3 CONNECTIONS

4.3.1 COM PORTS (RS232 COMMUNICATION WITH EXTERNAL
EQUIPMENT)
The hardware has two identical RS232 connectors; COM1 and COM2. How to connect
external equipment to the hardware is described in the product's documentation.
4.3.2 ETHERNET (LAN) PORTS
The hardware has two 10baseT/100baseT Ethernet modular jacks (RJ45) but only the
jack marked 1 is currently in use.
IMPORTANT: Shielded Ethernet cables should be used for installation on trains to meet
4.3.3 S900/A-BUS CONNECTION
The hardware can be connected to Ascom Paging System, Alarm modules, and Output
modules; either via modular system bus cabling or via twisted-pair lines to 1 and 2 on
screw connector A-bus.
The hardware has two modular jacks (RJ45) marked S900 for connection of Ascom
Paging System/modules via modular bus cabling. If modular bus cabling is not used,
connections are made with twisted pairs to 1 and 2 on screw connector A-bus.
Figure 7. Modular jacks for system bus and screw connectors for twisted pairs
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the regulatory requirements for railway equipment.
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