MFJ Multi-mode Data Controller -1278B User Manual page 311

MFJ-1278B MULTI-MODE
Table 8-1: Jumper Function (Cont.)
Jumper # Position
JMP16 Pin 1 & 2
Pin 1 & 3 (default)
Pin 2 & 4 (default)
JMP17 Pin1 & 2
Pin 2 & 3 (default)
JMP18 Pin 1 & 2 (default)
Pin 2 & 3
JMP19 Outside pair(default)
Middle pair
Inside pair
JMP20 ON (default)
OFF
JMP21 Pin 1 & 2
Pin 2 & 3 (default)
JMP22 Pin 1 & 2
Pin 2 & 3 (default)
JMP23 ON
OFF (default)
JMP24 Pin 1 & 2 (default)
Pin 2 & 3
JMP25 Pin 1 & 2 (default)
Pin 2 & 3
JMP26* Pin 1 & 2 (default)
Pin 2 & 3
HARDWARE
Function
Without multi-gray levels
With multi-gray levels
With multi-gray levels
2400 baud ext. modem clock
9600 baud ext. modem clock
Enable 19.2K baud termial
Disable 300 baud terminal
Enable 300 baud termial
Disable 19.2K baud terminal
Enable 32K mailbox RAM
Enable 128K mailbox RAM
Enable 512K mailbox RAM
512K mailbox RAM installed
32K or 128K mailbox RAM
154 KHz to multi-level PCB
307 KHz to multi-level PCB
Enable CW Grid Block Keying
Enable CW Direct Keying
Enable memory RESET
Normal operation
1 Megabit firmware EPROM
512K bit firmware EPROM
Normal Demodulator operation
Demodulator Bypass
Normal +5Vb bbRAM operation
Real-time clock installed