This manual introduces the functions and usage methods of MultiAccess ACS Analog Communications Server MA220, MA420 and MA820.
The MultiAccess ACS analog communication servers connect LANs to remote users via integrated V.92/56K modems. Three models are covered: the MA220 (2‑port), MA420 (4‑port) and MA820 (8‑port). All share the same Remote Access Server and modem‑sharing capabilities, with the MA420/MA820 offered in desktop and rack‑mountable versions and the MA220 in desktop or wall‑mountable form.
The guide includes detailed product specifications, safety warnings, installation steps for desktop or rack mounting, configuration of IP addresses, RAS and modem‑sharing modes, software utilities, LED indicator meanings, and troubleshooting procedures. Appendices cover device‑manager utility, regulatory information, WEEE statement, and the end‑user license agreement.
| Ethernet Interface | 10BaseT/100BaseT |
|---|---|
| Serial Port | RJ45/RS232, 115200bps, 8,N,1, No Flow Control |
| Input Power | 100–240 Vac, 1.2–0.6 A, 50/60 Hz |
| Operating Temperature | 32 °F to 120 °F (0 °C to 50 °C) |
| Physical Dimensions (MA220) | 6.4" W × 5.6" D × 1.2" H |
The MA220 is a 2‑port unit, the MA420 is a 4‑port unit, and the MA820 is an 8‑port unit.
The devices include integrated V.92/56K modems that support V.92, V.90, V.34, V.32bis, V.22bis, V.22, V.23, V.21 and related standards.