D-Link DSN-6020 User Manual page 28

1. Using RS-232 cable for console (back color, phone jack to DB9 female) to connect
from controller to management PC directly.
2. Using RS-232 cable for UPS (gray color, phone jack to DB9 male) to connect from
controller to APC Smart UPS serial cable (DB9 female side), and then connect the
serial cable to APC Smart UPS.
Caution
It may not work when connecting the RS-232 cable for UPS (gray color,
phone jack to DB9 male) to APC Smart UPS directly.
Figure 2.5.4
28