Modem Port (Type 1 Ecom Only) - Emerson ControlWave EFM Instruction Manual

ControlWave EFM Instruction Manual

2.10.3 Modem Port (Type 1 ECOM only)

2-46
When connecting a ControlWave EFM to an external (case-mounted)
modem, use the cable configuration in Figure 2-33.
Figure 2-33. Full-duplex and Half-duplex Cable
Figure 2-34. ECOM Modem Installation
You can mount an optional 56Kb PSTN Hayes-type modem on a Type
1 ECOM (see Figure 2-34).
The ControlWave EFM then assigns the modem COM7 (if in slot #3) or
COM11 (if in slot #4).
You can configure the MultiTech model MT9234SMI modem module
for publicly switched telephone network (PSTN) operation. You can
Installation Revised Dec-2013