Rack Mount and Power On Procedures
Inserting a media card
GRF 400/1600 Getting Started - 1.4 Update 2
October, 1998
3-19
Inserting a media card
Note:
To operate properly, a GRF 1600 requires that a minimum of two media cards be
installed.
Note:
Also, a face plate cover must be installed in any unused slot to maintain cooling flows.
Media cards are actually two logic boards joined to make a single component. As shown in
Figure 3-9, the smaller board on the right is the serial interface, also called the serial daughter
card. The larger one on the left is the media board and has the network ports. Together they
comprise a GRF media card. The GRF 400 and 1600 use the same media cards.
The media card serial and part numbers are printed at the lower edge of the card, near the
bottom finger grip/extractor.
Figure 3-9. Media card components
The boards are joined by two 100-pin connectors and reinforcing plates. Even so, this joint
retains some flex and must be carefully supported, especially when inserting the media card
into a chassis.
Warning:
The backplanes of both the GRF 400 and the GRF 1600 contain hazardous energy
levels.
When replacing a media card, remove only one card at a time. Removing more than one
card will expose the operator to this energy hazard.
Warnung
: An den Rückwandplatinen des GRF 400 und GRF 1600 liegen gefährliche
Hochspannungen ab.
Zum Auswechseln der Medienkarte jeweils nur eine Karte entfernen. Bei zwei gleichzeitig
entfernten Karten ist der Bediener gefährlichen Spannungen ausgesetzt.
Media board
Ports
Serial
daughter
card
(g0143)
Serial/rev
number area
AT
M
OC-3c
SM
B
AT
M
3c
A
ATM
OC-3c
SM
B
ATM
3c
A
ATM
OC-3c
SM
B
ATM
3c
A
Top
Bottom
Horizontally level for GRF 400
Vertically
upright
for
GRF
1600
