- Installation of any battery-equipped device is forbidden, due to job site or local regulations.
- Installation without a battery may allow a higher temperature environment rating, such as that allowed for the JACE-6E or JACE-3E (60 °C maximum, vs. 50 °C maximum if with a rechargeable NiMH battery pack).
- Over time, the periodic replacement of the NiMH battery in the JACE presents too many costly obstacles. For example, your JACE may be installed in a difficult-to-reach location. And as the NiMH battery’s condition declines, “battery bad” alarm notifications
are received.
You can meet such issues by installing a standard JACE-8000, JACE-6E or JACE-3E controller, or if another earlier model (e.g. JACE-6,-7), by removing its NiMH battery pack and installing the SRAM option card. This makes the unit “battery-less”. As a consequence
of SRAM-only backup support, JACE battery monitoring no longer occurs—no more “battery bad” alarm notifications.
NOTE: A station running in a battery-less JACE has no seamless immunity to “power bumps”. Although all station data, including components, histories, and alarms, are automatically
restored to “pre-event” values as part of station startup (following power restoration), the briefest power outage results
in a controller reboot. For more details, see “Battery-less versus battery trade-offs”.
Note that a “battery-less” configuration for an SRAM-equipped controller is now one of two possible configurations where SRAM
is used. For more details, see “SRAM plus battery scenarios”.