Figure 4.5 Port S1 jumpers and DIP switches
4.4.3 Wiring Port S1 for RS-232
NOTE: Use the same polarity throughout the network segment. Use the same baud rate for all control
modules on the network segment.
When connecting the Liebert SiteLink-E Port S1 to a third-party device that uses RS-232:
• Liebert recommends using 18-28AWG wiring.
• Most RS-232 cables are not twisted pair, but twisted-pair wiring is acceptable.
• The distance from the Liebert SiteLink-E to the RS-232 BMS interface should not exceed 50 ft.
(15.2m).
Vertiv | Liebert® SiteLink-E™ Installation Manual | 18
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