User guide

A120 Power Supplies
188
890 USE 108 00 August 2001
This figure shows the front view of the PRTU258(C) power supply.
18
19
20
21
22
RTU258
18
19
20
21
22
+
-
+
-
30 to 70
Power Lost
VDC IN
L
N
AC IN
+
-
24 VDC
OUT
Signal
18
19
20
21
22
18
19
20
21
22
DANGER
Hazard of Electric Shock, Burn, or Explosion
This equipment must be installed and serviced only by qualified
electrical personnel.
Turn off all power supplying this equipment before working on or
inside equipment.
Always use a properly rated voltage sensing device to confirm power
is off.
Replace all devices, doors, and covers before turning on power to
this equipment.
Take extra precautions if you are using stranded wire. Ensure that
loose or projecting strands do not short-circuit ground or other
terminals. We recommend that you use solid wire.
Failure to observe this precaution will result in death or serious
injury.