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