Verilink AS56/56Plus (896-502588-001) Product Manual Manual de usuario Pagina 129

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Cables for INTernal/EXTernal Timing
AS56 and AS56
Plus
User Manual
B-5
Cables for INTernal/EXTernal Timing
Please refer to items #16 and #24 on
AS56 and AS56
Plus
Worksheet,
on
page 3-30.
Internal/External timing is supported with standard straight-through
cabling. In addition, the attached DTE must internally loop back its
incoming Transmit Clock to its outgoing External Transmit Clock. If this
cannot be done inside the DTE itself, the same function can be provided
with cable jumpers (at the DTE connector). Contact factory if assistance
is needed.
Figure B-3 V.35 Serial Port #1 Cabling for Internal/External Timing
Access System 56
V.35 Serial Port
Pin Assignments
Customer V.35 DCE
Pin Assignments
M-
Series
34-pin
Signal Signal
M-Series
34-pin
YTXC-A TXC-A Y
V RXC-A RXC-A V
U Ext. TXC-A Ext. TXC-A U
PTXD-A TXD-A P
AA (a) RXD-A RXD-A R
R TXC-B TXC-B AA (a)
X RXC-B RXC-B X
W Ext. TXC-B Ext. TXC-B W
STXD-B TXD-B S
T RXD-B RXD-B T
CRTS RTS C
FDC DC F
DCTS CTS D
HDTR DTR H
EDSR DSR E
B GROUND GROUND B
DTE
Internal
Function
DTE
Internal
Function
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