ADTRAN DSU IV ESP, User Manual

Page: 73 / 194

Chapter 7. Configuring DTE Options
61204011L1-1 DSU IV ESP User Manual 7-7
Transmit Clock
The T
RANSMIT
C
LOCK
option is used to select the source of the clock
used to transfer data from the DTE into the DSU IV ESP. Table 7-1
on page 7-3 shows the AT commands used to set the
T
RANSMIT
C
LOCK
options. Figure 7-2 shows the menu path used to set the
Transmit Clock option. The factory default is N
ORMAL
.
Table 7-2 shows the AT commands used to set the T
RANSMIT
C
LOCK
option.
The E
XTERNAL
C
LOCK
option allows the DSU IV ESP to accept
M
ASTER
C
LOCK
timing from the External DTE Port as defined
under DTE Options connector type. The C
LOCK
S
OURCE
under
N
ETWORK
O
PTIONS
must also be set to M
ASTER
as noted in the
section, Clock Source on page 6-4.
1= NETWORK OPT.
1= DTE RATE
2= DTE OPTIONS 2=C ONNECTOR TYPE
1=LOCAL 3= DATA FORMAT
4= DTE CMD OPTION 1= NORMAL
5= TRANSMIT CLOCK 2= EXTERNAL
3=CONFIG 6= CS OPTIONS
7= ANTI-STREAM
2=REMOTE ENTER ADDRESS 3= TEST OPTIONS 8= CD OPTIONS
4= DIAL OPTIONS 9= TR OPTIONS
5= MANAGEMENT A= SR OPTIONS
6= UTILITIES
Figure 7-2. Transmit Clock Options
Table 7-2. Transmit Clock AT Commands
Front Panel AT Command Description
1=NORMAL &X0 TX clock from DSU selected
2=EXTERNAL &X1 ETC clock from DTE selected