Auxiliary Port Pinouts; Commands Required To Set Up The Mod Em For The Console Port - IBM Nways 8260 Manual

The lower port is the auxiliary port and can be jumpered for RS-232 or RS-423
operation. This port allows you to attach a terminal locally (or via modem) to
DMM. Note: The default is RS-232. See Table 7 on page 42 for the pinout of the
cables used for attaching terminals to the auxiliary port.
4.2.3.1 Modems for Connecting Terminals to DMM
The console port and auxiliary port can be used to connect a modem for remote
dial-in. The following requirements must be met:
1. The mo d em must be 100% Hayes compatible.
2. Any of the following baud rates may be used:
3. The mo de m must be placed in Dumb/Auto Answer mode. This can be done
** If you issue the Set Terminal Hangup Enable command for modem use, you
must change the DTR parameter as defined by the at&d2 command to ensure
42
8260 Multiprotocol Intelligent Switching Hub
Table 7. Auxiliary Port Pinouts
Pin # Signal Name
1 Carrier detect (CD)
2 Receive data plus (RX+)
3 Transmit Data (TX)
4 Data terminal ready (DTR)
5 Signal ground (SG)
6 Data set ready (DSR)
7 Request to send (RTS)
8 Clear to send (CTS)
9 Receive Data Minus (RX-) if RS-423, otherwise no connection
Note
You can attach terminals to both the console and auxiliary port at the same
time, and both of them will be able to access the DMM simultaneously.
300, 1200, 2400, 9600, 19,200 or 38,400
by entering the commands listed in Table 8 from a terminal directly attached
to the modem.
Table 8. Commands Required to Set Up the M o d e m for the Console Port
Commands #
at&f enter
at&d0 enter
a t s 0 = 1 enter
ats0? enter
atq1 enter
at&W enter
at&Y enter
at&d2 enter
Definition
Restore factory defaults
Ignore changes in DTR status **
Auto-answer on first ring
Verify Auto-answer (should return 001
Does not return result codes
Save this configuration
Define this configuration as the default
Indicates hangup and assumes command state when
an On to Off transition of DTR occurs **