Epson MFJ-1278B manual External Modem Interface Connector J14, J13 Pin # Pin Function

MFJ-1278B MULTI-MODE HARDWARE

MULTI-LEVEL INTERFACE CONNECTOR,J13

The MFJ-1278B provides the user with the capability to perform Multi-Level FAX operations as well as Color SSTV work. Multi-Level FAX and Color SSTV operations are accomplished through the addition of a Multi-Level Interface. The Multi-Level Interface controls both transmit and receive operations for the Multi-Level FAX and Color SSTV modes. Below in Table 8-4 are the pin outs for the ribbon cable connected at J13:

	Table 8-4J13 Pin Out
J13 Pin #		Pin Function
1		No connection
2		No connection
3		Connect Tone Output
4		Ground
5		SSTV/FAX receive signals
6		153.6/307 KHz Clock Select
7		SSTV/FAX select
8		SSTV/FAX transmit tones
9		SSTV/FAX receive control
10		SSTV/FAX transmit control
11		-5 Volts
12		Data Bit 7
13		Data Bit 6
14		Data Bit 5
15		Data Bit 4
16		Data Bit 0
17		Data Bit 1
18		Data Bit 2
19		Data Bit 3
20		+5 Volts

EXTERNAL MODEM INTERFACE CONNECTOR - J14

The External Modem Interface Connector, J14 is available for easy and quick addition of the MFJ-2400 or MFJ-9600 modems. The External Modem Interface Connector, J14 is a 5-pin straight type header located just in front of the RS-232C serial port connector. Below in Table 8-5, is the pin out of the External Modem Interface connector, J14:

Table 8-5External Modem Interface Pin Out