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2 external modem configuration, Operation – Alpha Technologies CFR 1500, CFR 1500RM User Manual

Page 37

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31

4.2

External Modem Configuration,

continued

Configuring the modem to work with CFR

The CFR uses a three wire interface (RX, TX, and GND) to communicate

with the modem; no other hardware handshaking lines are used. The modem must
be configured correctly to work with the CFR. To configure the modem, set the
modem DIP switches as explained below:

NOTE: Do not enable auto answer using DIP switches. CFR sends an AT command
to control the auto answer mode (either “ATS0=1” or “ATS0=0”).

The modem initialization string is a set of commands that CFR sends to the

modem to initialize it. For a USRobotics or compatible modem, include the following
AT commands in the initialization string:

X4

Extended set of result codes

Q0

Result codes are displayed

V1

Display verbal (words not numbers) result codes

&H0

Disable transmit data flow control
(neither hardware “CTS” nor software “XON/XOFF” flow control)

&R1

Disable hardware receive data flow control
(set modem to ignore RTS and send data all the times)

&I0

Disable software data flow control (no XON/XOFF flow control)

&B1

Set the RS–232 serial port rate to fixed
(set modem to detect the AT command baud rate and maintain it)

The first three commands are supported by all Hayes compatible modems;

however, the last four commands belong to an extended set of Hayes commands
which are supported by USRobotics and some other manufacturers. Therefore, for
USRobotics Sportster family of modems, the proper initialization string is (CFR default
setting):

USRobotics initialization string:
ATX4Q0V1&H0&R1&I0&B1

for other modems that do not support the extended set of Hayes commands you
should compile an equivalent command. However, in most cases, using the following
simplified initialization string results in satisfactory operation:

Simplified initialization string for most other modems:
ATQ0V1

NOTE: Do not include the auto answer command in the initialization string. CFR sends
an AT command to control the auto answer mode (either “ATS0=1” or “ATS0=0”).

Switch

Option

1

Set modem to ignore DTR (DTR override)

2

Set modem to generate verbal (not numeric) results

3

Set modem to generate result codes

4

Disable echoing of commands (Echo suppressed)

5

Disable auto answer

6

Set modem to set CD when it connects

7

Set modem to load factory setting on power-up

8

Set modem to recognize AT commands (smart mode)

4. OPERATION

42

The menu items outlined in this manual can be accessed from a remote

terminal. The numbers contained in this guide act as a quick reference to accessing
menu functions. Single-digit numbers relate to specific main menus. Double-digit
numbers relate to specific sub-menus.

5.3

Remote Terminal Quick Reference

5. RS-232 TERMINAL COMMUNICATION

0

QUERY ALL PARAMETERS

1

SYSTEM PARAMETERS

BATTERY TEMPERATURE

11

START TEST MODE

12

STOP TEST MODE

2

INPUT PARAMETERS

VOLTAGE
CURRENT
VOLT AMPS
POWER IN WATTS
POWER FACTOR
LINE FREQUENCY

3

OUTPUT PARAMETERS

OUTPUT #1

VOLTAGE
CURRENT

OUTPUT #2

VOLTAGE
CURRENT

VOLT AMPS
POWER IN WATTS
POWER FACTOR
LINE FREQUENCY

4

BATTERY PARAMETERS

VOLTAGE
CURRENT
CHARGER STATUS
TEMPERATURE

5

USER PARAMETERS

SET TEST SCHEDULE

53

SET TEST START

55

SET TEST FREQUENCY

56

TRANSMIT UNSOLICITED ALARMS

58

SET USER SECURITY CODE

59

SET MAINTENANCE SECURITY CODE

CFR SOFTWARE VER.
MICRO BOARD SER. NO.
EEPROM VERSION NO.
POWER BOARD SER. NO.

501 START SHUTDOWN WHEN DELAY IS SET
502 START OUTPUT SHUTDOWN
503 CANCEL OUTPUT SHUTDOWN
504 RECOVER OUTPUT SHUTDOWN ONLY WHEN AC

LINE RESTORED

505 SET OUTPUT SHUTDOWN DELAY
506 SET OUTPUT SHUTDOWN DURATION
507 SHUT OFF INVERTER - SAVE BATTERY
508 START UP INVERTER FROM SAVE BATTERY
509 NONE
510 TRANSMIT IPC-XXX TYPE UNSOLICITED ALARMS
511 INVERTER ON ALARM DELAY

52

EXTERNAL MODEM SETUP
520 ENABLE AUTOMATIC ALARMS
521 ENABLE REMOTE ACCESS
522 SET ALARM ACTIONS
523 SET INVERTER ALARM DELAY
524 SET DIAL1 PHONE NUMBER
525 SET DIAL2 PHONE NUMBER
526 SET LOCATION ID
527 SET CUSTOM INIT CMD
528 SET REMOTE HANG UP TIME

6

- NOT AVAILABLE -

7

MAINTENANCE PARAMETERS
70

FAST DETECT LOW REF

71

FAST DETECT HIGH REF

72

MEDIUM DETECT LOW REF

73

MEDIUM DETECT HIGH REF

74

SLOW DETECT LOW REF

75

SLOW DETECT HIGH REF

76

SLOW DETECT HYS. LO REF

77

SLOW DETECT HYS. HI REF

78

MAX. PLL SLEW RATE

79

BATTERY WARNING REF.

5

USER PARAMETERS, continued