Micro Technic user manual UPS signals CN7, PV-1800 register interface, Base address

Users Manual & Installation Guide

PV- 1800: Power supply module with GSM MODEM

UPS signals (CN7)

The PV-1800 has signals that, combined with external circuitry, can be used to implement a UPS function. There is an input for turning off the 20W power supply (SWITCHER_OFF), two status inputs (UPS_STATUS1 and UPS_STATUS2), and an output (UPS_PWROFF) that can tell the external circuitry to turn off power after a programmable delay.

Connector layout:

Pin no Name

1GND

2*

3*

4*

5*

6UPS_PWROFF

7+5V

8UPS_STATUS2

9UPS_STATUS1

10 SWITCHER_OFF

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* = do not connect, for internal factory use.

PV-1800 register interface

The PV-1800 has three blocks of I/O ports: the modem UART, the external RS232 UART and the internal registers. The UARTs are 16C550 compatible and use eight I/O ports each.

The base addresses of the modem UART and external RS232 UART are configured on configuration jumper 1,2,3 and 4,5,6 respectively, see the table printed

on the board. The IRQ of both UARTs are configured on the IRQ jumpers. You cannot use the same IRQ for both UARTs.

Base address

Configuration jumper 7, 8 configure the base address of the sixteen internal registers. This table is also printed on the board.

ST1		Base address
7	8	Registers
0	0	200h
0	1	220h
1	0	300h
1	1	320h

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