EN 128 | Installation and Operating Manual VIP X1 |
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Pin assignment
The pin assignment for the serial interface depends on the interface mode that is used (see page 84):
Contact | RS232 function | RS422/485 function |
IN1 | Alarm input 1 | Alarm input 1 |
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IN2 | Alarm input 2 | Alarm input 2 |
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IN3 | Alarm input 3 | Alarm input 3 |
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IN4 | Alarm input 4 | Alarm input 4 |
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GND | GND (ground) | GND (ground) |
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GND | GND (ground) | GND (ground) |
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R (top) | Relay | Relay |
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R (bottom) | Relay | Relay |
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CTS | CTS (clear to send) | RxD- (receive data minus) |
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RTS | RTS (ready to send) | TxD- (transmit data minus) |
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RXD | RxD (receive data) | RxD+ (receive data plus) |
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TXD | TxD (transmit data) | TxD+ (transmit data plus) |
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+ | 12 V (power supply) | 12 V (power supply) |
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– | GND (ground) | GND (ground) |
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To operate the alarm inputs, connect each alarm input to a ground contact (GND) via a trigger contact.
Appendix | Bosch Security Systems |
