Power Failure Transfer (4Coidb-B1 Only); General - NEC SL1100 Hardware Manual

ISSUE 4.1 (R5.1)
LED Indication
Live LED (D4) Busy LED (D3)
(Green) (Red)
Off
Flash 80ms (On/
Off) x3/ 400ms

3.5 Power Failure Transfer (4COIDB-B1 only)

3.5.1 General

In the event of AC power failure, the specified trunk is directly connected to the specified extension
port as below. And SLT must be connected to the specified extension. The multiline telephone (2W)
does not work when the specified trunk is connected to the specified extension port.
J2 (CO1-4): Trunk Port 1
Refer to Table 2-11 RJ-61 CO/PF Pin-Outs (J2, J3) on page 2-48
telephone.
• The connected extension must be SLT (Single Line Telephone).
Hardware Manual
Operation Status
On Unit Busy A Channel is busy (use another
from Ch1 - Chx)
Off All channels are Idle.
Downloading firmware
Off
J3 (PF1): Extension Port 1
Remarks
-
-
-
for wiring of the power failure
SL1100
2-53