19
Battery Purchase or Replacement
The MT7711 has battery back-up circuitry which is for Telephone (Tel1)
back-up only. The MT7711 typically does not ship with a battery included. A
battery is not required for normal operation with AC power. If you lose AC
power, a back-up battery allows the telephone plugged into Tel1 to still
function.
If you want a back-up battery, you can purchase one separately online. The
battery is
Model 98250
from MTRLC LLC. (If you ever need to check that
you have the right battery, look on the battery label for
BP-15033-22/2150
S
.)
If you have the right battery installed and power is lost, the Tel1 jack will
provide up to five hours of talk time or eight hours of stand-by time. The
Tel2 jack does not provide this back-up feature. Only phones that do not
require their own power source will work during a power outage (unless the
phones are provided with their own separate battery back-up system). It’s a
good idea to have at least one phone handy that just needs to plug into the
MT7711, and not into a power jack.
Another way to handle loss of AC power is to plug the MT7711 into an
Uninterruptible Power Supply (UPS). In that case the amount of talk time and
stand-by time depends on what UPS you choose.
Summary of Contents for MT7711
Page 1: ...User Manual 24x8 cable modem plus AC1900 WiFi router Model MT7711 2 Xfinity phone lines ...
Page 8: ...8 Chapter 13 VPN Virtual Private Network Chapter 14 Troubleshooting Tips ...
Page 28: ...28 5 Click the Login button ...
Page 37: ...37 Check the UPnP Enable box and click Save at the top of the Router Selections box ...
Page 38: ...38 Select OFF in the IPv4 Firewall Protection pulldown and click Save ...
Page 53: ...53 ...
