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Overview: Cisco ASR 9000 Series Router Shared Port Adapters
J1
Signal
J1-8
O_RTS/CTS+
J1-9
O_RTS/CTS-
J1-5
I_RxD/TxD+
J1-18
I_RxD/TxD-
J1-11
I_CTS/RTS+
J1-10
I_CTS/RTS-
J1-4
I_RxC/TxCE+
J1-17
I_RxC/TxCE-
J1-26
Circuit GND
The following table lists the X.21 DCE cable pinouts. Arrows indicate signal direction.
Note
Any pin not referenced is not connected.
Note
Twisted pairs 4, 6, and 9 are not used.
Table 55: X.21 DCE Cable Pinouts (DB-15 Female Connector)
J1
Signal
J1-21
MODE_2
-
-
J1-5
I_RxT/TxD+
J1-8
I_RxD/TxD-
J1-11
I_RTS/CTS+
J1-10
I_RTS/CTS-
J1-1
O_TxD/RxD+
J1-14
O_TxD/RxD-
J1-8
O_CTS/RTS+
J1-9
O_CTS/RTS-
Description
Direction
Twisted pair no.
——>
3
——>
Twisted pair no.
<——
8
<——
Twisted pair no.
<——
2
<——
Twisted pair no.
<——
7
<——
Twisted pair no.
—
1
Description
Direction
Local
-
connections
Shield
—
Twisted pair no.
<——
5
<——
Twisted pair no.
<——
3
<——
Twisted pair no.
——>
8
——>
Twisted pair no.
——>
2
——>
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
4-Port Serial Interface SPA Cables, Connectors, and Pinouts
J2
Signal
J2-3
Control+
J2-10
Control-
J2-4
Receive+
J2-11
Receive-
J2-5
Indication+
J2-12
Indication-
J2-6
Timing+
J2-13
Timing-
J2-8
Circuit
GND
J2
Signal
-
-
J2-1
Shield
GND
J2-2
Transmit+
J2-9
Transmit-
J2-3
Control+
J2-10
Control-
J2-4
Receive+
J2-11
Receive-
J2-5
Indication+
J2-12
Indication-
81
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