Nortel Meridian 1 option 11C Planning And Installation Manual page 53

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Terminals, printers, modems, and other data units used in conjunction with
the Option 11C require special wiring considerations.
Power for system equipment in the switch room must:
• be powered from the same panel or transformer as the Option 11C
• be grounded to the same panel or transformer as the Option 11C
• be tagged at the panel to prevent unauthorized interruption
• not be controlled by a switch between the breaker and the equipment.
Service receptacles for Option 11C AC systems and associated equipment
must be:
• of the isolated ground type, such as NEMA IG5-15
• rated for 120 or 240 V, 15 or 20A, 50-60 Hz, 3-pole, 3-wire, grounded
• grounded to the same location so as to form a Single Point Ground.
It is recommended that the system be equipped with a modem to allow remote
access. Set-up information for modems recommended for use with the
Option 11C system is found in "Modem setup requirements" on page 194.
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The minimum requirement is a 1200 bps auto-answer modem. The maximum
modem speed is 19200 bps.
If an error-correcting modem is connected to the Meridian 1 Option 11C
system, all flow-control and error-correcting functionality of the modem must
be disabled to ensure proper operation. Refer to the modem manufacturer's
instructions for information.
Set-up information for Option 11C recommended terminals is found in
"Terminal setup" on page 205.
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