Additional UPS Features

Pin Out

As shown in Table 2, Pins 1 and 2 operate in two modes: Basic Alarms mode and Serial Data mode. Basic Alarms mode has AC fail alarm and output shutdown. Serial Data mode is UPS Code II compliant.

The system always starts in Basic Alarms mode. When serial data is received at Pin 1, the function of Pin 1 and Pin 2 changes to Serial Data mode.

If serial data has not been received before going to battery power, serial communication is disabled until AC input power returns.

6 7 8 9

 

1

2

3

4

5

 

 

Figure 17. Communication Port

Table 2. Communication Port Configuration

 

 

 

 

 

 

 

 

 

 

 

 

Pin

Signal Type

 

 

 

 

Function

 

 

 

 

1

Basic Alarms Mode - Input: RS-232 level high (+12V) pulse

 

Remote UPS off. In absence of AC power, output is

 

4 to 5 seconds

 

 

 

 

turned off until normal AC power returns

 

 

 

 

 

 

 

 

Serial Data Mode - Input: RS-232 data

 

 

 

 

RS-232 serial communication input. 1200 baud,

 

 

 

 

 

 

8 bits, No parity, 1 stop bit, 1 start bit

 

 

 

 

 

2

Basic Alarms Mode - Output: RS-232 level high (+12V)

 

 

AC Input failure

 

 

 

 

 

 

 

 

Serial Data Mode - Output: RS-232 data

 

 

 

 

RS-232 serial communication output. 1200 baud,

 

 

 

 

 

 

8 bits, No parity, 1 stop bit, 1 start bit

 

 

 

 

3

Output: Open collector transistor ON, 50 mA, 40 Vdc rating

 

AC Input failure

 

 

 

 

 

 

 

4

Signal Common

 

 

 

 

Signal Common

 

 

 

 

5

Output: Open collector transistor ON, 50 mA, 40 Vdc rating

 

Impending low battery

 

 

 

 

 

 

 

6

Input: RS-232 RTS

 

 

 

 

Plug-and-play software enable trigger (activates

 

 

 

 

 

 

when pin changes from +12V to -12V)

 

 

 

 

 

 

 

7

Input: Relay contact or RS-232 level

 

 

 

 

Remote Emergency Power-Off: UPS total output can

 

 

 

 

 

 

be kept off with low signal or closing relay contact

 

 

 

8

Output: 8 to 25 Vdc, 5W constant power (0.63A max. @ 8V)

Auxiliary Control Power

 

 

 

 

 

 

 

9

Chassis

 

 

 

 

Connection to chassis

 

 

 

 

 

 

 

26

Powerware® 5119 User’s Guide : www.powerware.com