Remote annunciator wiring (tb4) – Edwards Signaling eFSA250 User Manual
Page 27
Chapter 1: Installation and wiring
E-FSA64 and E-FSA250 Technical Reference Manual
15
Remote annunciator wiring (TB4)
The control panel provides a connection for up to eight remote annunciators.
Circuit specifications
• Class B or Class A
Note:
The Edwards Signaling eFSA64 panel requires the SA-CLA card to
support Class A and redundant Class B circuits. Refer to “SA-CLA wiring” on
page 23, or to installation sheet P/N 3101094.
• Circuit voltage: 2.55 V peak-to-peak average
• Circuit current: 30 mA max.
• Circuit resistance: 90 Ω
• Circuit capacitance: 0.3 µF
• Ground fault impedance: 0 to 5 kΩ
• RS-485 communications speed: 9600 baud
• Wiring: 18 to 14 AWG (1.0 to 2.5 mm
2
) twisted pair
• Wire run: 4,000 feet (1,219 m) max.
• Power-limited and supervised
Notes
• Refer to the R-Series Remote Annunciators and Expander Installation and
Operation Guide (P/N 3100969) or the R-Series annunciator installation
sheets for detailed wiring information
• Installation limits are determined by the AHJ
Figure 21: Remote annunciator wiring location