ROBERTS GORDON® ULTRAVAC™ CONTROLLER INSTALLATION MANUAL
SECTION 5: COMMUNICATIONS
One ROBERTS GORDON® ULTRAVAC™ Controller per building (called the "central controller) must have equipment for remote communications to a PC. This equipment consists of either a modem chip, an RS- 485 converter, or a TCP/IP communications module.
For remote
If only remote
TCP/IP communication module.
An
shielded twisted pair communication wiring. See Page 21, Figure 14.
To interface with ULTRAVAC™ controllers through a Local Area Network (LAN), a TCP/IP Communication module is installed at controller #1. Controller #1 is wired to the LAN by an Ethernet cable. See Page 22, Section 5.3. Any computer on the LAN that has ULTRAVAC™ software installed can communicate with the controllers. Appropriate precautions must be taken to protect the Ethernet wiring from any possible electrical interference (noise) caused by surrounding machinery or equipment.
If multiple ULTRAVAC™ controllers are being used, the additional controllers communicate to controller #1 through communication wiring arranged
FIGURE 13: Modem Location
Control Board of the |
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| Dip Switch #1 | ||
Central Controller |
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NC C NO NC C NO NC C NO NC C NO L2 L1 | PWR |
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| OUT IN G +32 +5 G G | G REF - | + | REF | - | + | - | + | - | + - + | - | + | 1 2 3 4 5 6 7 8 | ||||
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| 24VAC |
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| RS232 DIRECT |
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| AUX POWER |
| RS485 COMM |
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| METER INPUTS |
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| Modem | |||||||
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| RESET |
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| OH CD RI | Chip | ||
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| ADDRESS |
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| CPU |
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| UNIVERSAL INPUTS |
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| Installed | |
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| 1 |
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| Modem Chip | ||
NC C NO NC C NO NC C NO NC C NO |
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- | + | - | + - | + - | + - + - | + - | + | - | + |
| OUT |
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| 499 OHM |
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| IN |
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| OFF |
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| 10VDC |
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| ON |
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| Phone Cable Connection |
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Description | Part Number |
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Modem Chip | 10080142 |
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5.1Dedicated Phone Line for Central Controller Modem
The Central Controller is fitted with a modem chip. To use the modem, the controller must have a phone line for modem communications. Install a phone line near the location of the Central Controller. The phone cable is plugged into the phone connection in the corner of the control board. See Page 20, Figure 13. If the modem option is not used for everyday commu- nication to the controller(s), it can still be plugged into a phone line for troubleshooting or programming assistance. Contact your local
If multiple ULTRAVAC™ controllers are being used, the additional controllers communicate to controller #1 through
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