What we did (and it fits our needs)

    SeaLevel (SeaLink Familly) with a Zotak.

    We got both Win/Linux/BSD debugging/monitoring station (with 2 1Gbps, 1 MGMT 1 Mirror) and up to 16 serials ports in 1U.

    ( With some DYI )

    I'm sure you can get a better density if you check with them.

-----
Alain Hebert                                ahebert@pubnix.net   
PubNIX Inc.        
50 boul. St-Charles
P.O. Box 26770     Beaconsfield, Quebec     H9W 6G7
Tel: 514-990-5911  http://www.pubnix.net    Fax: 514-990-9443
On 09/18/18 09:36, Alan Hannan wrote:
I'd like your input on suggestions for an alternate serial port manager.

Long ago I used Cisco 2511/2611 and was fairly happy.  A little later I used portmaster and was less so.  Recently I've been using Opengear and they work fairly well but the price is fairly high.   I use the CM7100 and IM7100.

General specs I'm looking for are:

 * 8 to 48 or more rs232 serial ports on rj45
 * nice-to-have software selectable pinouts (cisco v. straight)
 * gig-e ethernet port (100mbps ok)
 * 1U form factor
 * redundant AC power
 * access physical serial connections via local port #
 * access physical serial connections via local IP alias (nice to have)

Can you recommend a serial port server/concentrator that I could use in place of opengear for a better value and/or lower cost?

I'm just ignorant about the current market for serial port concentrators and so far web searches have not revealed ideas, so your input is appreciated!

Thanks!

-alan