3

Support Information

Connector J6 Interconnect Signals (MVME712-13, MVME712AM)

Connector J6 is the modem RING and TIP from the Telco front panel jack on the MVME712-13 and MVME712AM. Each pin connection, signal mnemonic, and signal characteristic for the connector is listed in Table 3-9.

Table 3-9. Connector J6 Interconnect Signals (MVME712-13/AM)

Pin

Signal

Signal Name and Description

Number

Mnemonic

 

 

 

 

 

 

 

1

TIP

Tip side of telephone line.

 

 

 

2

RING

Ring side of telephone line.

 

 

 

Connector J7 Interconnect Signals (MVME712-13, MVME712AM)

Connector J7 is the onboard modem interconnect (refer to Appendix A for details on the modem). Each pin connection, signal mnemonic, and signal characteristic for the connector is listed in Table 3-10.

Table 3-10. Connector J7 Interconnect Signals (MVME712-13/AM)

Pin

Signal

Signal Name and Description

Number

Mnemonic

 

 

 

 

 

 

 

1

MDMTXD2

TRANSMIT DATA - data to be transmitted is

 

 

furnished on this line to the modem from the

 

 

terminal.

 

 

 

2,3

 

Not used.

 

 

 

4

-12VMODEM

-12 Vdc Power - used by the modem.

 

 

 

5

+5VMODEM

+5 Vdc Power - used by the modem.

 

 

 

6

 

Not used.

 

 

 

7

MDMDTR2

DATA TERMINAL READY - an active low

 

 

signal from the terminal to the modem

 

 

indicating that the terminal is ready to send or

 

 

receive data.

 

 

 

8,9

 

Not used.

 

 

 

10

GND

GROUND - modem circuit ground interface.

 

 

 

11

MDMCTS2

CLEAR TO SEND - an active low signal that the

 

 

modem maintains in the on state.

 

 

 

12

 

Not used.

 

 

 

3-14

MVME712-12/-13/A/AM/B Transition Modules and LCP2 Adapter Board UserÕs Manual

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Motorola Connector J6 Interconnect Signals MVME712-13, MVME712AM, Connector J6 Interconnect Signals MVME712-13/AM