Instruction manual

Installing the E911 Adjunct
6-5
Enhanced 911 Service
Installing the E911 Adjunct 6
When you select the E911 Adjunct option, you must connect a piece of
auxiliary equipment called the E911 adjunct to the control unit. You also must
program an E911 Alarm port on a tip/ring port and connect the E911 adjunct to
this Alarm port.
The E911 Partition option requires no additional equipment.
The actual number of central office lines that can be connected to the E911
adjunct may vary, depending on the equipment used. Ground-start
(recommended) or loop-start trunks can be assigned to the E911 adjunct.
Ground-start trunks assigned to the E911 adjunct must be connected to a 408
GS/LS-ID-MLX module with upgradeable firmware Release 3.2 or to a 800 GS/
LS-ID module with upgradeable firmware Release 1.4. The system supports up
to five trunks.
If you try to program the following trunks as an E911 Adjunct trunk, you hear an
error beep and are denied programming the trunk:
■ Music-On-Hold trunks
■ Loudspeaker Paging trunks
■ Data trunks
■ Maintenance alarm trunks
■ Unequipped T1 trunks
■ PRI lines that are not assigned to a B-channel group
■ The PRI line assigned as the D-channel
■ Trunks used in pools
■ Trunks used as Personal Lines
■ Trunks assigned to an E911 partition