Hubbel GAI-TRONICS SP2 Fiber, Руководство пользователя

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Pub. 42004-790B
SP2 Fiber Class I Div. 2 Handset/Speaker Amplifier Station
Page 9 of 24
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RTU Inputs
The standard termination PCBA contains two auxiliary RTU inputs. The optional 70V/100V termination
board provides speaker line monitoring and has just one auxiliary RTU input. Terminate the input(s) at
terminal block
TB2
(see Figure 4).
1. Pull the RTU input cable(s) into the enclosure.
2. Install spade lugs on the wires.
3. Connect the RTU input wires to terminal block TB2 (see Table 3 or Table 4).
4. Torque the terminal block screws to 8–10 in·lb (0.90–1.13 N·m).
5. Install end-of-line resistors (see Figure 7) to enable RTU input-cable monitoring.
Table 3. Standard Termination Board
RTU Input Termination—TB2
Table 4. 70V/100V Termination Board
Speaker Line Monitoring and RTU Input
Termination—TB2
Pin Label Function Pin Label Function
TB2-1
+
RTU 1
INPUT
RTU Input 1 + TB2-1
+
LINE
SPRVN
70 V/100 V
Super
TB2-2
− RTU Input 1 − TB2-2 −
70 V/100 V
Supervision −
TB2-3
+
RTU 2
INPUT
RTU Input 2 + TB2-3
+
RTU
INPUT
RTU Input +
TB2-4 − RTU Input 2 − TB2-4 − RTU Input −
Figure 7. RTU Input Wiring Configurations for Cable Monitoring