Table of Contents
Advertisement
4-Port Serial Interface SPA Cables, Connectors, and Pinouts
J1
Signal
J1-8
O_RTS/CTS+
J1-7
O_DTR/DSR+
J1-6
B_DCD/DCD+
J1-19
GND
J1-13
B_LL/LL+
J1-26
GND
J1-5
I_RxD/TxD+
J1-18
I_RxD/TxD-
J1-1
O_TxC/RxD+
J1-14
O_TxD/RxD-
J1-4
I_RxC/TxCE+
J1-17
I_RxC/TxCE-
J1-2
O_TxCE/RxC+
J1-15
O_TxCE/RxC-
J1-3
B_TxC/TxC+
J1-16
B_TxC/TxC-
The following table lists the X.21 DTE Cable Pinouts 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 54: X.21 DTE Cable Pinouts (DB-15 Male Connector)
J1
Signal
J1-21
MODE_1
J1-24
MODE_0
-
-
J1-1
O_TxD/RxD+
J1-14
O_TxD/RxD-
Cisco ASR 9000 Series Aggregation Services Router SIP and SPA Hardware Installation Guide
80
Description
Direction
Twisted pair no.
——>
2
——>
Twisted pair no.
——>
1
—
Twisted pair no.
<——
3
—
Twisted pair no.
<——
5
<——
Twisted pair no.
——>
9
——>
Twisted pair no.
<——
6
<——
Twisted pair no.
——>
8
——>
Twisted pair no.7
——>
——>
Description
Direction
Local
-
connections
Shield
—
Twisted pair no.
——>
5
——>
Overview: Cisco ASR 9000 Series Router Shared Port Adapters
J2
Signal
J2-D
CTS
J2-E
DSR
J2-F
RLSD
GND
J2-K
LT
J2-B
GND
J2-P
SD+
J2-S
SD-
J2-R
RD+
J2-T
RD-
J2-U
SCTE+
J2-W
SCTE-
J2-V
SCR+
J2-X
SCR-
J2-Y
SCT+
J2-AA
SCT-
J2
Signal
-
-
J2-1
Shield
GND
J2-2
Transmit+
J2-9
Transmit-
Advertisement
Table of Contents
