3.2 Analog Modem Pools, Multi-modem Cards
A "multimodem card" is short for "multiport modem card". Some put a hyphen after "multi": multi-modem or multi-port. An analog modem pool is just many analog modems (the common home/office modem) provided either on an internal plug-in card or in an external chassis. Each modem comes with a built-in serial port. There is usually a system of sharing interrupts or of handling interrupts by their own electronics, thus removing much of this burden from the CPU. Note that these modems are not "digital modems" and will thus not be able to use 56k for people who dial-in.
Here is a list of some companies that make analog multiport modem cards which plug into slots in a PC. 8 modems/card is common. The cards listed claim to work with Linux and the websites should point you to a driver for them.
Multi-modem Cards (analog, not digital):
- Equinox SST Multi-modem. PCI, 56k, 4 or 8 ports
http://www.equinox.com/product/multi-modem.htm - MultiModemISI by Multi-Tech Systems. 56k or 33.6k, PCI,
4 or 8 ports. ISDN/56k hybrids.
http://www.multitech.com/PRODUCTS/MultiModemISI/ - PCI-RAS cards by Perle. 56k, 4 or 8 ports.
http://www.perle.com/solutions/app_notes/multi_modem/pci_ras_fax.html - RocketModem by Comtrol. ISA 33.6k, 4 or 8 port.
http://www.comtrol.com/sales/specs/rm.htm - RocketModem II by Comtrol. PCI 56k, 4 or 6 port
http://www.comtrol.com/sales/specs/rmii.htm - RockForce. 56k, 2 or 4 port Two port V.92/V.44
http://www.mainpine.com/ #RockForce+ Two port V.90 (www.mainpine.com/prodrockplus.html) #RockForceDUO Two port V.92/V.44 (www.mainpine.com/prodduo.html) #RockForceQUATRO Four port V.92/V.44 (www.mainpine.com/prodquatro.html) #RockForceDUO+ Two port V.92/V.44/V.34 SuperG3 Fax = #(www.mainpine.com/prodduoplus.html) #RockForceQUATRO+ Four port V.92/V.44/V.34 SuperG3 Fax = #(www.mainpine.com/prodquatroplus.html) # - Multi-modem communication adapters by Digi. http:/www.dgii.com/solutions/mmcommadapters/index.html
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