Multi-Tech Systems DT101/xx, DT102 External Modem, DSU, or Isdn Terminal Adapter, Data Channel

DataTalker Owner’s Manual

External Modem, DSU, or ISDN Terminal Adapter

3If the external device has an RS232 interface, connect the composite link cable supplied with the DataTalker from the EXTERNAL COMPOSITE RS232C/V.35 connector on the back panel to the external device.

						DATA/COMMAND
DIAL-UP	LEASED	DIGITAL	E&M	FXO	FXS	GND
						RS232C/V.35
MODEM		DSU/TA	VOICE/FAX CHANNEL 1			EXTERNAL COMPOSITE
						POWER
INTERNAL COMPOSITE

Composite	To External
Link Cable	Device

Figure 5-6. External Modem, DSU, or Terminal Adapter Connection

If the external device has a V.35 interface, connect a V.35 interface adapter cable (a cable with a 34-pin Winchester male connector on one end and a DB-25S connector on the other end) from the EXTERNAL COMPOSITE RS232C/V.35 connector to the external device. You can order a V.35 interface adapter cable from Multi-Tech (part number 90056210).

If the external device has a V.35 interface, you must move the V.35 shunt from its default RS232 position to the V.35 position. See Table 5-2 for the procedure on how to move the shunt.

Data Channel

4If you are connecting the data channel to an asynchronous device, such as a PC or other type of host, connect an RS232C cable from the DATA/COMMAND connector on the DataTalker to the serial port of the async device.

						DATA/COMMAND
DIAL-UP	LEASED	DIGITAL	E&M	FXO	FXS	GND
						RS232C/V.35
MODEM		DSU/TA	VOICE/FAX CHANNEL 1			EXTERNAL COMPOSITE
						POWER
INTERNAL COMPOSITE

DATA/COMMAND

Connector

RS232 Cable

Figure 5-7. Data Channel Connection

If you are connecting the data channel to a sync device, connect a cable appropriate for a synchronous interface from the DATA/COMMAND connector on the DataTalker to the appropriate connector on the sync device.

Voice/Fax Channel

5If you are connecting the voice/fax channel to a station device (a normal telephone, a KTS telephone, or a fax machine), connect an RJ-11 phone cable from the VOICE/FAX CHANNEL FXS connector on the DataTalker to the station instrument.

RJ-11

Telephone

Cable

			VOICE/FAX CHANNEL 2
						DATA/COMMAND
DIAL-UP	LEASED	DIGITAL	E&M	FXO	FXS	GND
						RS232C/V.35
MODEM		DSU/TA	VOICE/FAX CHANNEL 1			EXTERNAL COMPOSITE
						POWER
INTERNAL COMPOSITE

VOICE/FAX

CHANNEL 1

FXS Connector

1	2	3
4	5	6
7	8	9
*	0	#

Figure 5-8. Telephone Connection

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