Cisco MWR 1941-DC - 1941 Mobile Wireless Router Hardware Installation Manual page 81

Appendix B Cable Specifications
The network end of the EIA/TIA-449 adapter cable provides a standard 37-pin D-shell connector.
(See Figure B-9.) EIA/TIA-449 cables are available as either DTE (DB-37 plug) or DCE (DB-37
receptacle).
Figure B-9
EIA/TIA-449 Serial Cable Assembly
Figure B-10
Table B-11
means DCE to DTE.
Figure B-10 EIA/TIA-449 Serial Cable Assembly
J1-46
J1-45
J1-16
J1-15
J1-1
J1-30
J1-31
J1-60
Table B-10 EIA/TIA-449 DTE Cable Pinout (DB-60 to DB-37)
60-Pin
J1-49
J1-48
J1-51
J1-52
J1-46
J1-11
J1-12
J1-24
J1-23
J1-28
J1-27
78-15827-06B0
EIA/TIA-449 Adapter Cable Connectors, Network End
shows the EIA/TIA-449 serial cable assembly.
lists the DCE pinout. Arrows indicate signal direction: —> means DTE to DCE and <—
60-pin connector (J1)
Connectors are not to scale.
Signal Name Note
MODE_1 Shorting group
GND
GND Shorting group
MODE_DCE
Shield_GND Single
TXD/RXD+ Twisted pair no. 6
TXD/RXD–
TXC/RXC+ Twisted pair no. 9
TXC/RXC–
RXD/TXD+ Twisted pair no. 11
RXD/TXD–
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
DTE
DCE
Table B-10
37-pin connector (J2)
Direction 37-Pin
– –
– –
_ J2-1
—> J2-4
—> J2-22
<— J2-5
<— J2-23
<— J2-6
<— J2-24
Serial Connection Signals and Pinouts
lists the DTE pinout and
J2-19
J2-37
J2-20
J2-1
Signal Name
–
–
Shield GND
SD+
SD–
ST+
ST–
RD+
RD–
B-15