Eia-530 Interface; Eia-530 Connections; Eia-530 Serial Cable Assembly - Cisco MWR 1941-DC - 1941 Mobile Wireless Router Hardware Installation Manual

Serial Connection Signals and Pinouts

EIA-530 Interface

This section contains the following topics:
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EIA-530 Connections

EIA-530, which supports balanced transmission, provides the increased functionality, speed, and
distance of EIA/TIA-449 on the smaller DB-25 connector used for EIA/TIA-232, instead of the 37-pin
connectors used for EIA/TIA-449. Like EIA/TIA-449, EIA-530 refers to the electrical specifications of
EIA/TIA-422 and EIA/TIA-423. Although the specification recommends a maximum speed of 2 Mbps,
EIA-530 is used successfully at 4 Mbps or faster speeds over short distances.
The EIA-530 adapter cable is available in DTE mode only. The network end of the EIA-530 adapter
cable is a standard DB-25 plug commonly used for EIA/TIA-232 connections.
DB-25 connector at the network end of the adapter cable.
Figure B-15 EIA-530 Adapter Cable Connector, Network End

EIA-530 Serial Cable Assembly

Figure B-16
signal direction: —> means DTE to DCE and <— means DCE to DTE.
The EIA-530 interface cannot be operated in DCE mode, and no DCE cable is available for it.
Figure B-16 EIA-530 Serial Cable Assembly
J1-46
J1-45
J1-16
J1-15
J1-1
J1-30
J1-31
J1-60
Cisco MWR 1941-DC Mobile Wireless Edge Router Hardware Installation Guide
B-22
EIA-530 Connections
EIA-530 Serial Cable Assembly
shows the EIA-530 serial cable assembly, and
60-pin connector (J1)
Connectors are not to scale.
DTE
Table B-16
25-pin connector (J2)
Appendix B Cable Specifications
Figure B-15 shows the
lists the pinout. Arrows indicate
J2-13
J2-25
J2-14
J2-1
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