FIREscape System Installation Manual
Page 20 of 56
9
RS-232 Connectors
9.1
PC Interface, PRG
Figure 18 - PC Interface Cable Connection
9.2
EL-ISOL (RS-232 Isolator)
When connecting the control panel’s RS-232 outputs to devices which are earthed, such as PC/printer, the
connection may cause interference due to earth leakage. This is because the negative (-) pin of the RS-232
connector is usually connected to shield ground.
The connection must be arranged through a local modem or the EL-ISOL unit if the RS-232 device and the
control panel are not connected to the same power supply group. Usually this means the same room. In no
instance should the cable length without local modem exceed 20 m.
PC SERIAL
PORT
Summary of Contents for FIREscape
Page 1: ...Emergency Lighting System INSTALLATION MANUAL ...
Page 22: ...FIREscape System Installation Manual Page 24 of 56 Figure 6 An example of a spur arrangement ...
Page 37: ...FIREscape System Installation Manual Page 39 of 56 Figure 20 EL EXP Connection ...
Page 47: ...FIREscape System Installation Manual Page 49 of 56 Minimum Operating Voltage 7 5 V Figure 28 ...
Page 48: ...Page 50 of 56 FIREscape System Installation Manual Minimum Operating Voltage 8 5 V Figure 29 ...
Page 50: ...Page 52 of 56 FIREscape System Installation Manual Minimum Operating Voltage 7 5 V Figure 31 ...
Page 51: ...FIREscape System Installation Manual Page 53 of 56 Minimum Operating Voltage 8 5 V Figure 32 ...