Cisco 545 Serial - Manual (Page 43)

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Installation and Upgrade Guide for Cisco Unified Videoconferencing 3545 PRI Gateway and 3545 Serial Gateway Release 5.5
OL-14912-01
Chapter 2 Installing the Cisco Unified Videoconferencing 3545 Gateway
Serial Gateway Cable Connections and Pin-outs
DB-37 Connector
Figure 2-17 shows the DB-37 pin layout.
Figure 2-17 DB-37 Pin Layout
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