Cisco ASR 9000 Series - Page 95

SignalJ2DirectionDescriptionSignalJ1
Control+
Control-
J2-3
J2-10
——>
——>
Twisted pair no.
3
O_RTS/CTS+
O_RTS/CTS-
J1-8
J1-9
Receive+
Receive-
J2-4
J2-11
<——
<——
Twisted pair no.
8
I_RxD/TxD+
I_RxD/TxD-
J1-5
J1-18
Indication+
Indication-
J2-5
J2-12
<——
<——
Twisted pair no.
2
I_CTS/RTS+
I_CTS/RTS-
J1-11
J1-10
Timing+
Timing-
J2-6
J2-13
<——
<——
Twisted pair no.
7
I_RxC/TxCE+
I_RxC/TxCE-
J1-4
J1-17
Circuit
GND
J2-8—Twisted pair no.
1
Circuit GNDJ1-26
The following table lists the X.21 DCE cable pinouts. Arrows indicate signal direction.
Any pin not referenced is not connected.
Note
Twisted pairs 4, 6, and 9 are not used.
Note
Table 55: X.21 DCE Cable Pinouts (DB-15 Female Connector)
SignalJ2DirectionDescriptionSignalJ1
---Local
connections
MODE_2J1-21
Shield
GND
J2-1—Shield--
Transmit+
Transmit-
J2-2
J2-9
<——
<——
Twisted pair no.
5
I_RxT/TxD+
I_RxD/TxD-
J1-5
J1-8
Control+
Control-
J2-3
J2-10
<——
<——
Twisted pair no.
3
I_RTS/CTS+
I_RTS/CTS-
J1-11
J1-10
Receive+
Receive-
J2-4
J2-11
——>
——>
Twisted pair no.
8
O_TxD/RxD+
O_TxD/RxD-
J1-1
J1-14
Indication+
Indication-
J2-5
J2-12
——>
——>
Twisted pair no.
2
O_CTS/RTS+
O_CTS/RTS-
J1-8
J1-9
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
81
Overview: Cisco ASR 9000 Series Router Shared Port Adapters
4-Port Serial Interface SPA Cables, Connectors, and Pinouts