Getting Acquainted with the GRF 400
Overview of the GRF 400 base unit
GRF 400/1600 Getting Started - 1.4 Update 2
October, 1998
1-5
Overview of the GRF 400 base unit
Figure 1-2 shows the GRF 400 base unit from the front. The rack-mountable chassis is 5.25”
high and 19” wide. When you install the GRF, you must provide six to ten inches of side
clearance for ambient air intake and heated air exhaust. All ventilation is to the sides.
Figure 1-2. GRF 400 base unit and component (front view)
Figure 1-3 shows the chassis from the cable panel. Power supplies are on the left. The control
board is on the top of the card stack to the right, the four media cards are in the slots below:
Figure 1-3. Cable panel view of GRF 400
The GRF 400 has four media card slots, 0–3. Slots are numbered top to bottom as shown in
Figure 1-4, the control board is always 66:
Figure 1-4. Media card and control board stack with slots numbered
GRF 400
Intake
fans
Exhaust
vents
Power
supplies
Media card
and
Back plane
IP switch control board
stack
(g0002)
Lucent T
echnolo
gies
10/100-Q
4MB-TX
PWR
7
6
5
4
3
2
1
0
FDDI-Q
4MB
B 1
A 1
TRX
A 0
B 0
TRX
PWR
0
1
A
B
PWR ON
HSSI
F
A
UL
T
ST
A
T
0
ST
A
T
1
ST
A
T
2
HSSI 4MB
S
A
CTIVE
ST
A
TUS
A
CTIVE
AT
M
OC-3c
SM
B
A
RCV A
C
T
XMT A
C
T
LINK OK
PWR ON
F
A
UL
T
ST
A
T
0
ST
A
T
1
A
TM-3-Q
SM-4MB
RCV A
C
T
XMT A
C
T
LINK OK
LASER
LASER
LINK OK
RCV A
C
T
XMT A
C
T
PO
WER
F
A
UL
T
RESET
ST
A
TUS
A
CTIVE
RECEIVE
TRANSMIT
PS2-OK
PS1-OK
100/10
100
PCMCIA
B A
RS232
COM1
T
A
T
ST
A
TUS
3
2
1
0
Backplane
66
Control board
Media card slot numbers
(in decimal)
(g0009)
