MX410/MX412 System Manual Menu Descriptions61189500L1-1B PRELIMINARY 5-21Secondary Timing Mode MenuThe Secondary Timing Mode menu (see Figure 5-11) is used to set the secondary timing modefor the selected DS1 port (1-4 on the MX410 and 1-12 on the MX412).Figure 5-11. Secondary Timing Mode MenuThe Secondary Timing Mode menu options are shown in Table 5-8.CAUTIONThe entire MX410/MX412 is timed from a single source and alltransmitters are synchronized. Any device attached to the MX410/MX412 should be placed in loop or line timing mode, unless it isproviding timing. If an attached device is providing timing, theMX410/MX412 must be configured to use this interface as its pri-mary timing source. If the MX410/MX412 is set for internal timing,all devices connected to it must be set to loop or line timing.Table 5-8. Secondary Timing Mode Menu OptionsOption Description Function1 Internal This option sets the timing mode to internal.2 DS1 1 This option sets the timing mode to DS1 1.3 DS1 2 This option sets the timing mode to DS1 2.4 DS1 3 This option sets the timing mode to DS1 3.5 DS1 4 This option sets the timing mode to DS1 4.MX410 MM/DD/YY HH:MMActive Alarms: CRITICAL MAJOR ID: MX410Primary Timing Mode : Internal1 - Internal2 - DS1 13 - DS1 24 - DS1 35 - DS1 4Selection : '?' - System Help Screen
