For proper operations, the MERLIN Messaging System installation site must meet
the environmental requirements described in the table below.
| Condition | Requirement |
| Relative Humidity | 15% - 90% non-condensing |
| Temperature Range | 32° F to 122° F (0° C to 50° C) |
| Air Quality | Dust-free area (preferably in an office environment) |
| Environment | No exposure to liquids. Avoid areas near drinking fountains, coffee makers, etc. |
| Power Supply |
For the USA, Canada and other countries that use a USA-type outlet (nominal voltage 117 VAC), the communications system must have a 391A3 or newer power supply module installed in the same carrier in which the MERLIN Messaging System module is installed. In countries with nominal voltage of 220 VAC, a 391B2
or newer power supply module is required in the same carrier in which
the MERLIN Messaging System module is installed. |