Ultra electronics VersaMux-4000 Operations & Installation Manual page 67

Trunk group multiplexer
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Chapter 4: Getting Started
Figure 4-21
Part No. 24001157
Revision C
Figure 4-21
is similar to
Figure 4-20
to System, the VersaMux uses the system reference to clock the Transmitted Data
in from the DTE. In addition, the VersaMux uses the system reference for the
(Transmit Signal Element Timing- DCE Source) and Rx Clock (Receiver Signal
Element Timing- DCE Source) signals to the DTE. Typically the DTE would receive
the PRS from the same external source as the VersaMux or it would use the
VersaMux Tx Clock (DTE) or Rx Clock (Receiver Signal Element Timing- DCE Source)
to generate its system reference.
ClkRef = Ext (1MHz, 5MHz, 10MHz)
Port Interfaces
Primary Reference Source (PRS)
VersaMux-4000, DCE Mode, External Clock, TxClkSrc = System
VersaMux-4000 Operation & Installation Guide
except that with the TxClkSrc parameter set
VersaMux-4000 (DCE)
Mode = DCE
TxClkSrc = System
ClkRef
Planning the Timing
DTE Device
(IE: Crypto)
NRZ Interface
Tx Clock (DCE)
Tx Clock (DTE)
Transmitted Data
Rx Clock (DCE)
Rx Data
Page 4-17

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