Chapter 5: Installation
100 P/N 3101890-EN • REV 006 • ISS 21JUN18
Table 34: IOP3A power and installation specifications
Voltage
Standby current
24 VDC nominal
60 mA
Voltage
Current
12 VDC
10 mA max.
Half-footprint space on the back of the CAB6 backbox (see Figure 21 on page 79
footprint location)
Note: All unsupervised RS-232 connections must be in the same room, within 20 ft. (6.1 m), and enclosed in
conduit or equivalent protection against mechanical injury.
Configuring a CDR-3 for coded tone output
Refer to the Figure 34 wiring diagram on page 102 for a CDR-3 coded tone output application. If your control
panel setup includes a MIR-PRT/S printer, refer to the Figure 35 wiring diagram on page 103. Refer to the
information below for configuration settings.
Configuration settings
• Set the CDR-3 parity DIP switch S1-6 to ON (no parity) as shown in Figure 33 on page 101.
• Refer to the CDR-3 Bell Coder Installation Sheet (P/N 3100023) for other settings and specifications.
• For a combined CDR-3 and MIR-PRT/S printer application:
• Set the CDR-3 baud rate DIP switches S1-7 and S1-8 (see Figure 33 on page 101), and the MIR-PRT/S
baud rate. The recommended rate is 2400 bps.
• Configure the VM-CU Cabinet Configuration > Ports > Port Type to CDR-3/Printer and the Baud Rate to
the same rate as the CDR-3 and printer.
• Set the IOP3A DIP switch S1 to UP (enables outputs 1 and 2; disables DB9 and RJ12 connectors).
• Set the IOP3A jumpers as follows:
• Jumper JB1: Pins 2-3 (Supervision Mode) (Note: Jumpers JB1 and JB4 settings must agree)
• Jumper JB2 (Output 1): IN for an unsupervised printer (disables 12 VDC on TB2-1); OUT for a
supervised printer (enables TB2)
• Jumper JB3 (Output 2): IN (disables 12 VDC on TB3-1)
• Jumper JB4: IN (Supervision Mode) (Note: Jumpers JB1 and JB4 settings must agree)
Note: After configuring and wiring the CDR-3, adjust zoned amplifier output levels and the VM-PMI EAEC
auxiliary input gain as necessary.
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