Ge Est QS4 - Page 14

Product description
1.6 QS4 Technical Reference Manual
SLIC Signature Loop Intelligent Controller Card circuits
1. NAC #1
Configuration: Class B or Class A
Output voltage: 24 Vdc, nominal
Output current: 2.0 A @ 24 Vdc
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
End of line resistor: 10 kΩ, 1/2W
Supervised and power-limited
2. NAC #2
Configuration: Class B or Class A
Output voltage: 24 Vdc, nominal
Output current: 1.0 A @ 24 Vdc
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
End of line resistor: 10 kΩ, 1/2W
Supervised and power-limited
3. Signature Loop
Configuration: Class B (Style 4) or Class A (Style 6)
Capacity: 125 Signature detectors, 125 Signature single-address
modules
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
Circuit resistance: 65 Ω
Circuit capacitance: 0.3 µF
Supervised and power-limited
4. NAC Riser In/Out
Voltage: 24 Vdc, nominal
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
12
43
ZR8 Relay Card circuits
1. Dry-contact relays R1 – R4
Outputs: Normally-open or normally-closed contacts via jumper
selection
Contact rating: 24 Vdc @ 1.0 A
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
Nonsupervised, and power-limited only when connected to a
power-limited source
2. Dry-contact relays R5 – R8
Outputs: Normally-open or normally-closed contacts via jumper
selection
Contact rating: 24 Vdc @ 1.0 A
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
Nonsupervised, and power-limited only when connected to a
power-limited source
1
2
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