Db9 Adapter Side - Cisco IR1101 Hardware Installation Manual

Connecting the Router

DB9 Adapter Side

Figure 43: RJ-45 to DB9 Adapter
Make note of the front side versus the back side of the connector. This is important when pinning the wires
into the connector. In Figure 43: RJ-45 to DB9 Adapter, on page 70 above, the front of the DB9 connector
is present. When it is pinned, it becomes the male side of the connector.
DB9 Adapter Side
The loose side of the adapter is the DB9 side.
See Figure 44: RS-232 DB9 Male connector Male View, on page 70 for an example of a typical DB9 connector
with the signal names.
Figure 44: RS-232 DB9 Male connector Male View
A common cause of confusion when building a connector is the perspective of how you are viewing the
pinouts. The pinouts are different from the male versus female views when building the connector. See Figure
45: DB9 Pinout Views, on page 71.
IR1101 Industrial Integrated Services Router Hardware Installation Guide
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