
1-5
PA-8T-232 Synchronous Serial Port Adapter Installation and Configuration
OL-3562-03
Chapter 1 Overview
Cables and Pinouts
shows the connectors at the network end of the EIA/TIA-232 compact serial cable.
Figure 1-4
EIA/TIA-232 Compact Serial Cable Connectors
lists connector pinouts for the EIA/TIA-232 DTE compact serial cable
(CAB-OCT-232-MT[=]), and
lists connector pinouts for the EIA/TIA-232 DCE compact
serial cable (CAB-OCT-232-FC[=]).
H1343a
DTE
DCE
Table 1-3
PA-8T-232 DTE Compact Serial Cable Pinouts
Router End (200-Position Plug)
Network End (25-Pin Connector)
Pin
Signal
Note
Direction
Signal
Pin
J8-175
J8-176
MODE_0
GROUND
Shorting
Group
–
J8-26
J8-25
MODE_DCE
GROUND
Shorting
Group
–
SHIELD_GROUND
Braid
SHIELD GND
J0-1
J8-1
O_TXD/RXD+
Not used
Twisted pair no. 1
—>
TXD
Not used
J0-2
J0-7
J8-5
I_RXD/TXD+
Not used
Twisted pair no. 3
<—
RXD
Not used
J0-3
J0-7
J8-16
J8-14
O_RTS/CTS+
O_DTR/DSR+
Twisted pair no. 7
—>
—>
RTS
DTR
J0-4
J0-20
J8-23
J8-21
I_CTS/RTS+
I_DSR/DTR+
Twisted pair no. 8
<—
<—
CTS
DSR
J0-5
J0-6
J8-12
J8-11
IO_DCD/DCD+
SIG_GROUND
Twisted pair no. 6
<—
DCD
SIG GND
J0-8
J0-7
J8-9
IO_TXC/TXC+
Not used
Twisted pair no. 5
<—
TXC
Not used
J0-15
J0-7
J8-7
I_RXC/TXCE+
Not used
Twisted pair no. 4
<—
RXC
Not used
J0-17
J0-7
J8-19
J8-18
O_LL/NIL+
SIG_GROUND
Twisted pair no. 9
—>
LTST
SIG GND
J0-18
J0-7
J8-3
O_TXCE/RXC+
Not used
Twisted pair no. 2
—>
TXCE
Not used
J0-24
J0-7