Comtech EF Data CRS-280L - Manual (Page 58)

CRS-280L L-Band IF Switch for 1:N Redundancy Revision 1
Appendix B MN/CRS280L.IOM
B–2
B.2 Power Supply Module Removal Procedure
Step Task
1
DISCONNECT THE CRS-280L FROM ITS
POWER SOURCE!
For AC Units (pictured): Shut off the AC power
switch on both power supply modules and
disconnect both power cords from their receptacles.
For DC Units: Make sure to disconnect both power
cords from their DC power sources, then unscrew the
positive, negative, and ground leads from the
terminal block of the module being replaced.
2
Loosen the four captive mounting screws of the
module to be replaced, then carefully pull the module
plate away from the unit.