Jabra IEC 1107, IEC 61036 - page 10

Blue Star C500 Static Single-phase Watt-hour Meter – IEC 61036 (1.0S)
Page 10 1/26/2005 Rev 1.0.01
NO.1 Pulse Output : Active import energy
NO.2 Pulse Output : Active export energy
NO.3 Pulse Output : Reactive import energy
NO.4 Pulse Output : Reactive export energy
RXD : PC send data to meter
TXD : Meter send data to PC