ADTRAN TSU 120e - Manual (Page 63)

Chapter 5. Configuration Menu
61202129L1-1 TSU 120 User Manual 5-5
TSU 120 Clock Sources
The TSU 120 is operable from various clock sources permitting
it to perform properly in many different applications. Set the
network interface clocking options with the clocking options
set by the Network (NI) Configuration menu options.
The following clock source options are available:
• Network
• Base DSX-1 Timing
• DTE Timing
• Internal Timing
• Secondary Timing
• Normal (CSU) Timing
• U-BR1TE
The selected clock option always designates the clock source for
transmission. Clocking necessary for receiving data is always re-
covered from incoming data.