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Jumpers, Switches – Gasboy CFN III Quick Reference Guide v3.3 User Manual

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CFN III Quick Reference

Page 20

MDE-4483 CFN III Quick Reference Guide v3.3 · August 2005

Jumpers

SC-Comm CPU Board settings

Jumper

Description

Setting

K3

AC power fail sense

2-3 to enable

1-2-3 to disable*

K4

AC watch dog timer

1-2 to enable*

K5

SC-Comm CPU (testing
only)

1-2 to reset

K6

RS-485 loop 1, 2 wire to 4

wire

2-3 for 4 wire*

1-2 for 2 wire

K7

RS-485 loop 2, 2 wire to 4
wire

2-3 for 4 wire
1-2 for 2 wire*

K8

Rx Clock from synchronous
modem (DB-25-15)

1-2 to connect

K9

ETC output to synchronous
modem (DB-25-24)

1-2 to connect

K10

Tx clock input from

synchronous modem (DB-
25-17)

1-2 to connect

K11

EPROM type

2-3 for 27256 or

27128

K12

EPROM type

2-3 for 27256 or
27128

* = default setting

CFN3 Memory Board

Assembly part number: C05839.

Switches

DIP Switch SC-Memory I/O-S1

Position & Definition

Setting

1

Boot to monitor after reset
Boot to OS after reset

open
closed

2

Debug mode
Normal

open
closed

3

Don’t talk to PC while in

monitor
Monitor I/O goes to PC also

open

closed

4

Monitor I/O goes to SC port 1
also

No monitor I/O to SC port 1

open
closed


Dip Switch SC -Memory I/O-S2

Position & Definition

Setting

1

Battery 1

open=disabled
closed=enabled*

2

Battery 2 - External

open=disabled*

closed=enabled

3

N/A

unused

4

N/A

unused

Jumpers

SC-Comm Memory I/O board settings

Jumper

Description

Setting

K1

Date/Time Clock Speed

*1-2 for 4 wait

state
2-3 for 1 wait
state

K2

Enable A19 to RAM

*2-3 for 128Kx8
1-2 for 512Kx8

K3

RAM size

*2-3 for 128Kx8
1-2 for 512Kx8

K4

External Battery

no connector =
disabled

K5

Tokheim Reset Output

Channel 2
Do not install; not
supported

1-2 for reset

* = default

CFN3 Memory Map

00000

-

RAM

FFFFF

00000

DUAL RAM

00000

EEPROM

00000

SCC0

00800

SCC1

01700

SCC2

10000

SCSI

10100

LEDs

10200

CPU Board Switches

20000

Real Time Clock

20100

Memory Board
Switches

20300

Battery Status

20500

Watchdog Reset

20700

Battery Drain Control

00900

-

EPROM

Fffff

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