Vpd installation considerations, 2 vpd installation considerations – IBM SG24-4817-00 User Manual
Page 84
This soft copy for use by IBM employees only.
Note 1: Country Homologation dependency.
Table 6 (Page 2 of 2). ATM Physical Interface Support
Layer
Rate (Mbps)
Cable
Coding
A02 WAN
Support
STS-12c
622.08
UTP-5
(4 pairs)
No
OC-3/STM-1
155.52
MMF/SMF
NRZI
Yes
STS-3c
155.52
MMF/SMF
NRZI
Yes
STS-3c
155.52
UTP-5/STP
NRZI
No
155
155.52
M M F
8B/10B
No
155
155.52
STP
8B/10B
No
TAXI
100
M M F
4B/5B
No
STS-1
51.84
UTP-3
CAP-16
No
DS-3/T3
44.7
Coax (BNC)
NRZI
Yes
E3
34.4
Coax (BNC)
NRZI
Yes (Note 1)
E1
2.048
Bipolar-AMI
NRZI
No
T1
1.544
Bipolar-AMI
NRZI
No
25
25.6
UTP/STP
4B/5B
No
4.8.2 VPD Installation Considerations
Each I/O card ships with a special VPD (vital product data) PROM
(Programmable Read-Only Memory) chip. Before you can install the A02 WAN
module, you must attach the I/O cards and install the VPD chips. Details on the
installation process can be found in
IBM 8260/8285 ATM WAN Module:
Installation and User
′
s Guide. The following are a few additional considerations:
•
The VPD PROM sockets are next to their respective I/O cards. That is, the
left (or top) socket is matched with the left I/O card, while the right (or
bottom) socket is matched with the right I/O card. Arrows have been placed
on both sockets pointing to their respective I/O cards.
•
There is only one correct way to insert the VPD PROM in each socket. This
can be done by aligning the notch on the chip with the notch on the socket.
However, inserting the chip backwards will not damage it; the port simply
will not be able to register properly with the 8285 ATM Control Point.
Reversing the chip should solve the problem.
•
Any VPD PROM that ships with an A02 WAN I/O card can be used with any of
the other I/O cards without affecting card function. However, the card will
not be listed properly in the configuration, which could be very confusing to
someone managing the network. It is
strongly advised that you carefully
match the VPD PROM part numbers with their respective I/O cards as listed
in Table 7 on page 69
68
ATM Workgroup Solutions: Implementing the 8285 ATM Switch