T12017-Sentry_LANServer_Users_Manual | Page 6 of 59 |
Fig 1.2: Model 5391-01 LANServer with single Sentry Controller
For applications requiring the use of 2 to 4 Sentry controllers it is necessary to utilize RS- 485 communication from the controllers to the LANServer. Each Sentry will have a 4301-10 RS-232/RS-485 converter to provide the necessary RS-485 communication from the Sentry. This RS-485 link will interface to the RS-485 port on the LANServer. The Ethernet output from the LANServer can then interface directly to a computer (via a crossover cable) or to the LAN, WAN, Internet or PC via a hub. (Figure 1.3)
Fig. 1.3: Model 5391-01 LANServer with 2-4 Sentry Controllers
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