Vertiv Liebert S600D - Page 87

S600D
86
DB25 male (pin-type)
Pin
Table 8-3 DB25 connector pin description
Pin No.
Pin name
Description
Pin 1
Va, power output
9 - 15Vdc (reserved for factory use)
Pin 14
K0_NO, Channel 0 dry contact normally open output contact
Closed: UPS on Battery
Electrical
parameter:
30Vdc/1.8A,
resistive load
Pin 2
K0_COM, Channel 0 dry contact common output contact
Pin 15
K0_NC, Channel 0 dry contact normally closed output contact
Open: UPS on battery
Pin 3
K1_NO, Channel 1 dry contact normally open output contact
Closed: Battery Low
Pin 16
K1_COM, Channel 1 dry contact common output contact
Pin 4
K1_NC, Channel 1 dry contact normally closed output contact
Open: Battery Low
Pin 17
K2_NO, Channel 2 dry contact normally open output contact
Closed: UPS on Bypass or in
Standby
Pin 5
K2_COM, Channel 2 dry contact common output contact
Pin 18
K2_NC, Channel 2 dry contact normally closed output contact
Open: UPS on Bypass or in
Standby
Pin 6
K3_NO, Channel 3 dry contact normally open output contact
Closed: UPS Fault
Pin 19
K3_COM, Channel 3 dry contact common output contact
Pin 7
K3_NC, Channel 3 dry contact normally closed output contact
Open: UPS Fault
Pin 24
DRY_IN2, Channel 2 dry contact signal input
Reserved
Pin 12
DRY_IN1, Channel 1 dry contact signal input
The UPS is switched off if this contact is closed
for more than one second
Pin 25
DRY_IN0, Channel 0 dry contact signal input
The UPS is switched on if this contact is closed
for more than one second
Pin 9
RXD_PC, for communication to PC, receive terminal
Reserved, for factory commissioning
Pin 21
TXD_PC, for communication to PC, send terminal
Reserved, for factory commissioning
Pin 13
GND, common GND
Power GND, dry contact signal input common
GND
Others
NC
Cable options
VERTIV provides three cable options for connections to the DB25 connector of the relay card, depending on the
user’s requirements
Figure 8-10 - Figure 8-12 show the appearance and wiring principle of each cable.
Figure 8-10 Appearance and wiring diagram of cable 1 (UFDRY21SL1)
K0_COM
K1_COM
K2_COM
K3_COM