56k diagnostic lights

Joseph F

Diamond Member
Jul 12, 2010
3,522
2
0
I just recently bought an external 56k modem (fucking awesome!!!!) and there are several diagnostic lights on it. Can someone here explain what they mean?
They are labeled: CS, RS, CD, OH, RD, SD, TR and MR.
 

gaidensensei

Banned
May 31, 2003
2,851
2
81
Damn, you are young son. Lot of us come from even before the 56k days. We're talking 28.8, 14.4, 9.6k and earlier.
 

Numenorean

Diamond Member
Oct 26, 2008
4,442
1
0
CS - ???
RS - Request to Send
CD - Carrier Detect
OH - Off Hook
RD - Receive(d) Data
SD - Send Data
TR - Transmit/Receive
MR - ???

Some, not sure, guessing at the others.
 

guyver01

Lifer
Sep 25, 2000
22,135
5
61
Since we're talking Cutting Edge technology, check out my sweet new gaming rig..
only cost $10,000!!!

Commodore-64-Computer-System.jpg
 

MichaelD

Lifer
Jan 16, 2001
31,528
3
76
Wow, talk about a time warp thread. I didn't think dial-up even existed anymore. What's next? A thread like "I just bought a new TV and it came with this little box with buttons on it...I think it's called a "remote control"...what do I do with it?" :shocked:
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
I just recently bought an external 56k modem (fucking awesome!!!!) and there are several diagnostic lights on it. Can someone here explain what they mean?
They are labeled: CS, RS, CD, OH, RD, SD, TR and MR.

Dear lord I'm reaching back...

Clear to send
request to send
carrier detect
off hook
receive data
transmit data
terminal ready
modem ready

And a little factoid about 56k. In order to get 56k one end of the call HAS to be digital as in a T1 or PRI, T3, etc. It got to the point that you could fit 32 digital modems on what looked like a stick of memory.
 
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guyver01

Lifer
Sep 25, 2000
22,135
5
61
Wow, talk about a time warp thread. I didn't think dial-up even existed anymore. What's next? A thread like "I just bought a new TV and it came with this little box with buttons on it...I think it's called a "remote control"...what do I do with it?" :shocked:

well.. now that you mention it..

What AM i supposed to do with this thing???

zenith_space_command.jpg
 

Jeff7

Lifer
Jan 4, 2001
41,596
20
81
Damn, you are young son. Lot of us come from even before the 56k days. We're talking 28.8, 14.4, 9.6k and earlier.
First modem: 2400bps.

The olden days, when downloading a 5MB file was best done with a program like Getright, which could recover from broken downloads.
 

bobdole369

Diamond Member
Dec 15, 2004
4,504
2
0
Or when your mom picked up the phone...
1200 baud was my first one - a vicmodem if I recall. I was amazed that you didn't even need a phone, unlike my dads 300 baud which had the acoustic coupler.

Damn I feel old now.
 

davmat787

Diamond Member
Nov 30, 2010
5,512
24
76
Damn, you are young son. Lot of us come from even before the 56k days. We're talking 28.8, 14.4, 9.6k and earlier.

I remember when I spent $199 on a US Robotics 14.4 external modem. It was so much faster than what I had previously. :awe:
 

Iron Woode

Elite Member
Super Moderator
Oct 10, 1999
31,294
12,816
136
LOL

last month I bought 2 USR 56k external modems. One is an X2 model. I paid $10 for both.

I am going to use one for a project to attach it to a C64.
 

spidey07

No Lifer
Aug 4, 2000
65,469
5
76
Is that one of those remotes that uses sound instead of IR?

IIRC there was a striker in it that would hit a piece of metal like a tuning fork. Then a motor on the TV would turn the knob to change channels. The original ones only had a single button and you would get to a lower channel by cycling through the knob. It had no batteries.
 

ultimatebob

Lifer
Jul 1, 2001
25,134
2,450
126
Since we're talking Cutting Edge technology, check out my sweet new gaming rig..
only cost $10,000!!!

Commodore-64-Computer-System.jpg

I call shens on this... Even a fully loaded Commodore 64 system with all the accessories was never more than $2,500.

Now, an Amiga on the other hand...