C-4
Timing Options
GDC 048R154-000
clock to provide the channel transmit and receive clock signals on the
appropriate channel interface leads.
Select Receive Timing when using the DeskTop T1 DSU in a network
(or with a device at the remote end) that supplies the clock, as in a
DACS (Digital Access and Cross-connect System) network.
Figure C-1
Receive Timing
Select the appropriate timing option for the customer
equipment. The DeskTop T1 DSU provides transmit timing
on the DTE interface Tx Clk lead.
NOTE
Receive
Buffer
Transmit
(Send)
Buffer
Clock
Translator
Network Receive
T1 Data
DTE Receive
Data
Network Send
T1 Data
DTE Send
Data
1
3
2
4
S1
DTE Receive
Clock
DTE External
Clock
Recovered
Receive
T1
Clock
DeskTop T1 DSU
Timing
Source
