Port/DN status / 531N0130943 02 Modular ICS 7.1 Installer GuideDo not enable or disable ports at the following times:• during the first two minutes after Startup programming• before fiber cables are connectedIf you do so, incorrect ports may be enabled or disabled. Torecover from this, disable, then enable, the affected modulesusing Module status.Port/DN status allows you to check lines and devices on thesystem. Although the following procedures describe how tocheck devices, you can use the same procedures to check lines.Lines can only be disabled in Module status.Identifying a connected device Installer password requiredStart with the display showing System version.1. Press ‘. Port/DN status displays2. Press ≠. Show port: displays3. Enter the port number of the device, or press DN, then enterthe directory number of the device. The display showsdevice information, as illustrated in the following sampledevice identification display. This identifies the deviceconnected to the B1 channel.4. If there is an add-on device attached to a Norstartelephone, such as a central answering position module ora Busy Lamp Field, press ≠ to display the add-ondevice.5. Press >B2 to display the device connected to the B2channel.6. Press – until the display shows Port/DNstatus.