13
PA-2JT2 6.3-MHz Serial Port Adapter Installation and Configuration
OL-3587-01
VIP2 and the JT2 Port Adapter
Note
Port adapters and VIP2 carriers have handles attached, but these handles are occasionally not shown in
this publication to allow a full view of detail on each port adapter faceplate.
shows a VIP2-50 with two JT2 port adapters installed in port adapter slots 0 and 1.
Figure 8
VIP2-50 with Two JT2 Port Adapters (Horizontal Orientation Shown)
Note
If a blank port adapter is installed on the VIP2 in which you want to install a new port adapter, you must
first remove the VIP2 from the chassis, then remove the blank port adapter.
Caution
To prevent system problems, do not remove port adapters from the VIP2 motherboard or attempt to
install other port adapters on the VIP2 motherboard while the system is operating. To install or replace
port adapters, first remove the VIP2 from its interface processor slot.
When only one port adapter is installed on a VIP2, a blank port adapter must fill the empty slot to allow
the VIP2 and router chassis to conform to electromagnetic interference (EMI) emissions requirements,
and so that air flows through the chassis properly. If you plan to install a new port adapter, you must first
remove the blank port adapter.
Bus connector
SRAM
daughter
card
Boot ROM
CPU
SDRAM DIMM
H11224
Port adapter handles not shown
PA-2JT2 in
port adapter
slot 0
PA-2JT2 in
port adapter
slot 1
ENABLED
AIS R
AI
LO
S
AIS R
AI
LO
S
JT2
TX
0
R
X0
TX
1
R
X1
ENABLED
AIS R
AI
LO
S
AIS R
AI
JT2
TX
0
R
X0
TX
1
R
X1
AIS RAI LOS
