chaim@eniac.seas.upenn.edu (Chaim Dworkin) (02/13/90)
Recently someone gave me an old DEC modem to use with my Rainbow. It is a
DEC DF112-AA 1200 baud modem. It appears not to be an autodial modem, rather
it seems to require an attached phone to dial. There is a row of LEDs and a
row of buttons along the front.
Is there anyone familiar with this modem who can tell me what the buttons
along the front do? The buttons are labeled as follows:
"LL ST RL DL HS Data/Talk"
Obviously the HS switches from 300 to 1200 baud and the Data/Talk does
just that. But can anyone tell me what the others do?
Additionally, the LEDs are labeled:
"SD RD CD TR MR OH HS TM"
I know the SD, RD, CD, OH, and HS, but can anyone tell me what the others
are?
I also discovered that ctrl-C toggles from Talk to Data. Can anyone tell
me if there are any other keyboard commands the modem accepts?
Thanks very much.
Chaim
stebbins@GUIDUK.dec.com (Gary Stebbins) (02/14/90)
In article <20325@netnews.upenn.edu>, chaim@eniac.seas.upenn.edu (Chaim Dworkin) writes... >Is there anyone familiar with this modem who can tell me what the buttons >along the front do? The buttons are labeled as follows: >"LL ST RL DL HS Data/Talk" LL: Local Loopback ST: Self Test RL: Remote Loopback DL: Digital Loopback HS: High Speed >Additionally, the LEDs are labeled: >"SD RD CD TR MR OH HS TM" SD: Send Data RD: Receive Data CD: Carrier Detect TR: Terminal Ready MR: Modem Ready OH: Off Hook HS: High Speed TM: Test Mode >I also discovered that ctrl-C toggles from Talk to Data. Can anyone tell >me if there are any other keyboard commands the modem accepts? The DF112-AA is not an autodial modem, and as far as I know should not interpret any keyboard commands. However, the box is the same as for the DF112-AC, so possibly you have an -AC card in the box. If that's the case: ^A Activates the auto dial feature in burst mode. Typically used with computer configurations or intelligent terminals with memory storage. ^B Activates the auto dial feature in interactive mode. (The modem should respond with "Ready".) ^C In manual answer mode, pressing Control C connects the modem to the line without having to access the modem to change from talk to data. P or T Indicates pulse or tone dialing of digits that follow. P is assumed if not specified. = Access pause; causes a pause period of 15 seconds to wait for secondary dial tone. If dial tone is not detected, "No Dial Tone" error message is displayed. # Indicates the end of the number string; start dialing. Example: ^B modem responds with "Ready" T9=5556789# modem dials number and connects