Cisco MWR 1941-DC - 1941 Mobile Wireless Router Hardware Installation Manual page 78

Serial Connection Signals and Pinouts
EIA/TIA-232 Connections
EIA/TIA-232 supports unbalanced circuits at signal speeds up to 64 kbps. The network end of the
adapter cable is a standard 25-pin D-shell connector known as a DB-25. (See
console and auxiliary ports also use EIA/TIA-232 connections; however, the serial module ports support
synchronous connections, and the console and auxiliary ports support asynchronous connections.
Figure B-7
EIA/TIA-232 Serial Cable Assembly
Figure B-8
lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <— means DCE to
DTE.
Figure B-8
J1-46
J1-45
J1-16
J1-15
J1-1
J1-30
J1-31
J1-60
Table B-8
60-Pin
J1-50
J1-51
J1-52
J1-46
J1-46
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
B-12
EIA/TIA-232 Adapter Cable Connectors, Network End
shows the EIA/TIA-232 serial cable assembly.
EIA/TIA-232 Cable Assembly
60-pin connector (J1)
Connectors are not to scale.
EIA/TIA-232 DTE Cable Pinout (DB-60 to DB-25)
Signal Note
MODE_0 Shorting group
GND
MODE_DC
E
Shield Single
GND
Shield Single
GND
DTE
DCE
Table B-8
25-pin connector (J2)
Direction 25-Pin
– –
– J2-1
– J2-1
Appendix B Cable Specifications
Figure B-7.) The router
lists the DTE pinout and Table B-9
J2-13
J2-25
J2-14
J2-1
Signal
–
Shield
GND
Shield
GND
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