Black Box Mixed-Media Fiber Hubs
Installation and User Guide (4/99)
3.9.2
Installing PM Cards in the Black Box LH8050A
Up to sixteen front-mounted PM cards may be installed in one LH8050A Fiber Hub
unit.
Follow these steps to install a PM.
Step 1.
Remove front-top chassis cover. See procedure in Section 3.9.1 above.
Step 2.
The figure below
illustrates the
basic layout of
an individual PM
card. Each PM
card fits into the
applicable PM
connector socket
slot. Align the connector pins on the bottom of the PM card with the connector socket
inside
30
the unit. The pins are slightly angled to facilitate the installation.
Note
:
If the PM module are difficult to install, move to the next port and install.
Some of the port modules may fit easily on one port and be difficult to install on
another
.
Step 3.
Slowly and carefully apply enough pressure to insert the PM card into position (see
Figure 3.9.2b below). Once inserted, the PM card will be secured by the header
connector, the front panel port slot cut-out, and PM retaining screws.
Figure 3.9.2b: Inserting PM Cards into an LH8050A
NOTE: All PM slots need not be filled in order for the LH8050A unit to be operational.
When leaving PM slots empty, always use a face plate LH8057A-PNL to cover the slot
opening in the front panel. This will maintain proper cooling air flow, safety, and
operation as required by FCC, CE, and other regulations
.
Bottom PM Retaining
Screw Hole
Ten(10) Pin
PM Connector
(inserts into main board)
FRONT
Printed Circuit card
TOP
LED
10100
PWR
BRD
ACT
COL
Mixed Media hub
1
PM CARDS
Black Box LH8050A
