Incite Fire FIREscape, Installation Manual

Page: 36 / 56

FIREscape System Installation Manual
Page 38 of 56
14 EL-EXP Expansion Unit
The EL-EXP connectivity card is used for expanding the serial ports of the EL-2 control panel. The EL- EXP unit
provides two additional ports, SER1 and SER2.
The EL-EXP is connected to the control panel with the flat cable supplied with the card. The card is connected
to the top right corner of the control panel housing with the supplied plastic supports.
For the EL-EXP unit to work, the HHL-SER chip supplied with the unit must be installed in the control panel in
the corresponding place, see Figure 20. The control panel must be powered off (mains and battery; you must
wait until the CPN led turns off) before installing the chip. Note the orientation of the chip - the groove must
point to the right toward the SER1+2 connector.
The card has 2 serial communication ports, which can be configured either as RS-232 or RS-485 ports. The
select
ion of the port’s serial communication format is done by setting all jumpers (4) that refer to the port (A or
B) to the 232 setting (for RS-232) or 485 (for RS-485). The port will not work unless all of the jumpers (4) are
either in the 232 or 485 position.
The LEDs on the card can be used for checking the functionality of the serial communication; ATX (port A
transmit), ARX (port A receive), BTX (port B transmit) and BRX (port B receive).
NOTE: The 12V voltage output on the card is intended only for the EL-ISOL card. PORT A of the EL- EXP card
refers to port SER1 when programming the control panel’s serial communication port. Similarly, PORT B
refers to port SER2.