freedman@euclid.math.temple.edu (Avi Freedman) (11/04/90)
Since sun sales dweeboids are notoriously unreliable, I figured that I'd check with the net. Are there any problems hanging a Tbit 2500 off of an SLC? I heard in a press release that they had strange serial ports or something, and it is important that I can run uucp over the tbit. Thanks alot, Avi Freedman p.s. re: my last query about the 4/1110 vs. the SLC, I've received over 60 messages about the issue! I'd summarize, but I only got two requests.
shapiro@athos.rutgers.edu (Joel Shapiro) (11/19/90)
I cannot tell you anything directly about a Tbit, but the manual gives the pinout of the single DB25 connector of the SLC. From memory (I cannot look at my files while reading news on a vt320, alas) port A had the usual things on lines 2, 3, 4, 5, 6, 7, 8, 20, while port B had two of these left out, and of course the signals available were on different pins. I made a box to break the one port into two, successfully, but I doubt that I really tested the modem lines.
devil@TECHUNIX.BITNET (11/19/90)
In article <1990Nov4.030825.2169@rice.edu> freedman@euclid.math.temple.edu (Avi Freedman) writes: >Since sun sales dweeboids are notoriously unreliable, I figured that I'd >check with the net. Are there any problems hanging a Tbit 2500 off of an >SLC? I heard in a press release that they had strange serial ports or >something, and it is important that I can run uucp over the tbit. No problem for the first serial port, it is completely standard. In fact, I am writing this thorugh a Tbit 2500 connected to an SLC, so I guess that proves it. I got the pin out for the second serial port off the net, and that one does not have DTR/DSR lines. This makes it bad for use with modems, unless you want to do software control of hangups, and don't mind not detecting them... The following is a part of an old mesasge from comp.sys.sun. I forgot who the original proster was, But Thanks! I tested the pin-out below, and it works for both ports. Wire these pins straight through for the A port: SLC use A port 1 protective ground 1 2 TD (transmitted data) 2 3 RD (received data) 3 4 RTS 4 5 CTS 5 6 DSR 6 7 signal ground 7 8 DCD 8 20 DTR 20 22 RI 22 Wire these pins to the B port: SLC use B port 1 protective ground 1 7 signal ground 7 13 secondary CTS 5 14 secondary TD 2 16 secondary RD 3 19 secondary RTS 4 Note that pins 1 and 7 are common to both ports. End included message. | Gil Tene "Some days it just doesn't pay | | devil@techunix.technion.ac.il to go to sleep in the morning." |