SignalJ2DirectionDescriptionSignalJ1
CA(A), RTS+
CA(B), RTS-
J2-4
J2-19
<——
<——
Twisted pair no. 1I_CTS/RTS+
I_CTS/RTS-
J1-11
J1-10
CB(A), CTS+
CB(B), CTS-
J2-5
J2-13
——>
——>
Twisted pair no. 4O_RTS/CTS+
O_RTS/CTS-
J1-8
J1-9
CC(A), DSR+
AC; GND
J2-6——>
——>
Twisted pair no.
10
O_DTR/DSR+
O_DTR/DSR-
J1-7
J1-20
CF(A), DCD+
CF(B), DCD-
J2-8
J2-10
——>
——>
Twisted pair no.
11
IO_DCD/DCD+
IO_DCD/DCD-
J1-6
J1-19
DB(A), TxC+
DB(B), TxC-
J2-15
J2-12
——>
——>
Twisted pair no. 7O_TxCE/TxC+
O_TxCE/TxC-
J1-3
J1-15
DD(A), RxC+
DD(B), RxC-
J2-17
J2-9
——>
——>
Twisted pair no. 8IO_TxC/RxC+
IO_TxC/RxC-
J1-2
J1-15
LL
AB; GND
J2-18
J2-7
<——
——
Twisted pair no.
12
I_NIL/LL
Circuit GND
J1-13
J1-26
CD(A), DTR+
AC; GND
J2-20
J2-23
<——
<——
Twisted pair no. 3I_DSR/DTR+
I_DSR/DTR-
J1-12
J1-25
DA(A),
TxCE+
DA(B),
TxCE-
J2-24
J2-11
<——
<——
Twisted pair no. 6I_RxC/TxCE+
I_RxC/TxCE-
J1-4
J1-17
Not used--Twisted pair no. 2--
The following table lists the EIA/TIA-232 DTE cable pinouts. Arrows indicate signal direction.
Any pin not referenced is not connected.
Note
Table 48: EIA/TIA-232 DTE Cable Pinouts (DB-25 Male Connector)
SignalJ2DirectionDescriptionSignalJ1
---Local
connections
MODE_0
MODE_DCE
J1-23
J1-24
Shield
GND
J2-1-Shield--
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
74
Overview: Cisco ASR 9000 Series Router Shared Port Adapters
4-Port Serial Interface SPA Cables, Connectors, and Pinouts
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