Cisco Systems 8600 Series manual ATL1, ATSØ=1, AT\N3, At%C, At\Qø, AT&S1, Ateø, ATQ1, At&W

Modems, Dial-In and Dial-Out

Step 6 Connect the modem to the BPX CONTROL port using a null-modem cables Figure C-1.A null modem cable is used, as the connection is essentially a DCE to DCE rather than a DTE to DCE connection.

Step 7 Ask customer service to assist in testing the operation of the modem setup.

Table C-7	V.34R Modem Configuration for Auto-Answer (Dial-in to BPX)
Step	Command	Function
1.	AT & F	Reset to factory default.
2	ATL1	Set modem loudness, modem speaker at low volume.
3.	ATSØ=1	Enables Auto-Answer Mode on modem (answer on first ring).
4	AT\N3	Enables automatic MNP error correction.
5	AT%C	Disables data compression.
6.	AT\QØ	Disables XON/XOFF flow control.
7.	AT&S1	Sets DSR to "normal".
8.	ATEØ	Disables local character echo. Modem will not echo what you type.
9.	ATQ1	Disables result codes. (Modem will appear “dead”, will stop
		responding “OK” to commands.)
10.	AT&W	Saves current configuration settings in non-volatile memory. (Writes
		and stores to configuration location 1.)
Figure C-1	Dial-Modem Cabling for Auto Answer (Dial-In to BPX)

Control

port

FG		1
TXD		2
RXD		3
RTS		4
CTS		5
DSR		6
DTR		20
SG		7
Legend
FG	-	Frame Ground
TXD	-	Transmit Data
RXD	-	Receive Data
RTS	-	Request To Send
CTS	-	Clear To Send
DSR -		Data Set Ready
DTR	-	Data Terminal Ready
CD	-	Carrier Detect
SG	-	Signal Ground

Modem

connector

1

2

3

4

5

6

20

7

12138

BPX Switch Peripherals C-5