Verilink AS56/56Plus (896-502588-001) Product Manual - Manual (Page 129)

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
Y TXC-A TXC-A Y
V RXC-A RXC-A V
U Ext. TXC-A Ext. TXC-A U
P TXD-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
S TXD-B TXD-B S
T RXD-B RXD-B T
C RTS RTS C
F DC DC F
D CTS CTS D
H DTR DTR H
E DSR DSR E
B GROUND GROUND B
DTE
Internal
Function
DTE
Internal
Function