Product description
1.8 QS4 Technical Reference Manual
DLD Dual Line Dialer Card circuits
1. Line #1
Supervised and nonpower-limited
2. Line #2
Supervised and nonpower-limited
12
RS485 (NT–A) Class A Card circuits
1. Secondary RS485 channel
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
Supervised and power-limited
2. Primary RS485 channel
Wire size: 18 to 12 AWG (0.75 to 2.5 mm
2
)
Supervised and power-limited
Note: JP1 installed for ground fault detection on RS485 circuits.
12
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