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Vertiv™ NetSure™ 731 C62 Series Power System User Manual
Lead the cable ties through the fixing holes at the top of the cabinet. Use the cable ties to fix the modem on the top of
the cabinet, as shown in Figure 2.11.
Figure 2.11 Position for placing modem
Cable tie
2. Connect modem with the controller
The input and output interfaces of the modem are shown in Figure 2.12.
Figure 2.12 Input & output interfaces of TD-5648DCII Modem
1) Connect a telephone line to the 'LINE' interface on the modem.
2) Use a power cable to connect the positive and negative power terminals (silkscreen: POWER) of the modem to the
DC positive busbar and negative busbar (below the battery fuse) of the power system respectively.
3) Use a communication cable to connect the communication interface of the modem (DB25 female, silkscreen: RS-232)
to the J6 interface (DB9 male) of the controller.
NOTE! During system testing, set the parameter 'Modem' of the controller to 'Y'.
Connecting dry contacts
The controller provides five pairs of dry contacts, which are J6 and J7 interfaces shown in Figure 2.10. Peel one end of
the signal cable (optional) and insert it into J6 and J7 interfaces. The functions of the dry contacts are given in Table 2.5.
Table 2.5 Dry contact functions
Interface
Function
J6-1, 2, 3
AC mains failure
J6-4, 5, 6
DC over/undervoltage
J6-7, 8, 9
Rectifier and MPPT module failure
Note: The above functions are default settings. Users can change them through the controller
10
Modem
POWER
RS-232
LINE PHONE
Interface
J7-1, 2, 3
J7-4, 5, 6
Function
The default function is the battery
disconnect interface
The default function is the battery
disconnect interface
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