DCP Mode 2 Networks — Modem Pooling 5-9
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Table 5-1. Tested RS-232 to Rack-Mounted Modem Pool Combinations
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RS-232 MODEMS
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424(9600) 2296(9600) 3296(9600) MODEM POOL
MEMBERS
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2296(9600) OK OK OK
+ MTDM
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2296(9600) OK OK OK
+ 7400A
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424 NOTE 4 NOTE 4 NOTE 4
+ 7400A
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424 NOTE 5 NOTE 5 NOTE 5
+ MTDM
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NOTE 1 — flow control problem. Both the MTDM and the 7400A expect XON/XOFF flow control when
running 19.2 Kbps.
NOTE 2 — works but not cost effective (RS232 modems should be running 19200 also).
NOTE 3 — not tested and not cost effective (modems should be running 19.2). Voice messages can
emulate XON/XOFF. This results in lost data and dropped connections.
NOTE 4 — not tested because not cost effective (424 not off the shelf compatible with 7400A in a rack
mount).
NOTE 5 — not recommended since MTDM is being manufacture discontinued.
