Black Box Modular SwitchesInstallation and User Guide (8/99)
Looking down into the LE14XXA-Series unit, notice that there are individual 4PM connector sockets along with two stand-offs for each 4PM card position. There are four 4PM slots located on the front of the LE1416Amodel, whereas LE1401A and LE1408A has two 4P slots in the front. (See Figure 3.9.1b).
AC Power Input
Back of Unit
Cooling Fan
Left
Side
LED Status Slot
Eight QPM Slots
Front of Unit
Figure 3.9.1b: LE1416A, Top View with Chassis Cover
Step 3. Remove bottom-front and modules rear top Retaining Screws in any 4PM or Face Plates
On the bottom-front of the unit, there are two retaining screws for each 4PM card slo as well as two other retaining screws on the rear top of the module. These four screws are used to secure a 4PM face plate in position. These screws are also used to secure the individual 4PM cards, which can be subjected to significant forces from the attached cables. (See Figure 3.9.1c)
TwoBottomretainingScrewsforeachQPMcard
Screws hold Face Plates
Two retaining screws on the rear top of module
4PM CARDS
J1 J2 J3
Printed CircuitJ4 card
Magnum QS5116
Fiber Switch
G A R R E T T
Figure 3.9.1c: Front View - 4PM Retaining
