SignalJ2DirectionDescriptionSignalJ1
LL
AB; GND
J2-18
J2-7
——>
—
Twisted pair no.
12
O_LL/DCD
Circuit GND
J1-13
J1-26
CD(A), DTR+
AC; GND
J2-20
J2-23
——>
—
Twisted pair no. 3O_DTR/DSR+
O_DTR/DSR–
J1-7
J1-20
DA(A),
TxCE+
DA(B),
TxCE–
J2-24
J2-11
——>
——>
Twisted pair no. 6O_TxCE/TxC+
O_TxCE/TxC–
J1-2
J1-15
Not used––Twisted pair no. 2––
The following table lists the EIA/TIA-530 DCE cable pinouts. Arrows indicate signal direction.
Any pin not referenced is not connected.
Note
Table 45: EIA/TIA-530 DCE Cable Pinouts (DB-25 Female Connector)
SignalJ2DirectionDescriptionSignalJ1
---Local ConnectionsMODE_2
MODE_0
J1-21
J1-23
Shield GNDJ2-1-Shield--
BA(A), TxD+
BA(B), TxD-
J2-2
J2-14
<——
<——
Twisted pair no. 5I_RxD/TxD+
I_RxD/TxD-
J1-5
J1-18
BB(A), RxD+
BB(B), RxD-
J2-3
J2-16
——>
——>
Twisted pair no. 9O_TxD/RxD+
O_TxD/RxD-
J1-1
J1-14
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+
CC(B), DSR-
J2-6
J2-22
——>
——>
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
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
71
Overview: Cisco ASR 9000 Series Router Shared Port Adapters
4-Port Serial Interface SPA Cables, Connectors, and Pinouts
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