Bay Networks 5380 Original operating instructions

Part No. 112771-A
May 1996
Quick Installation
for the Model 5380
and Model 5580
Memory Upgrade Kit
112771-A QI SIMMs Page 1 Tuesday, December 17, 1996 6:45 AM

2
Introduction
The Model 5380 Ethernet Router and the Model 5580 Token
Ring Router can be configured with 8 MB, 16 MB, or 32 MB
dynamic random access memory (DRAM) in the form of single
in-line memory modules (SIMMs) that reside on the printed
circuit board. This guide describes how to install and replace the
SIMMs on the router modules. The part numbers for the Ethernet
and token ring router SIMMs are:
• 8 MB SIMMs order number AD0011005
• 16 MB SIMMs order number AD0011006
• 32 MB SIMMs order number AD0011007
CAUTION:
Only qualified technicians should install
this equipment.
Place all printed circuit boards on an antistatic mat
until you are ready to install them. If you do not have
an antistatic mat, wear a discharge leash to free
yourself of static before touching any of the printed
circuit boards or free yourself of static by touching a
grounded metal object before handling a printed circuit
board.
112771-A QI SIMMs Page 2 Tuesday, December 17, 1996 6:45 AM

3
Removing the SIMMs
1. Locate the SIMM sockets on the router module.
2. Push gently outward on the spring latch at each end of
the SIMM.
SIMM sockets
6697
Guide
notch
6733
112771-A QI SIMMs Page 3 Tuesday, December 17, 1996 6:45 AM

4
3. Lift the SIMM out of the socket.
When you release the SIMM from the spring latches, the
SIMM ejects from the locking studs and can be easily
removed.
4. Place the SIMM in an antistatic bag, or set it on an
antistatic mat.
6734
112771-A QI SIMMs Page 4 Tuesday, December 17, 1996 6:45 AM

5
Replacing the SIMMs
1. Note the location of the guides in the socket.
2. Hold the SIMM you are installing by its top corners, and
align the SIMM with the socket. Slide the SIMM gently
into the socket.
6735
112771-A QI SIMMs Page 5 Tuesday, December 17, 1996 6:45 AM

6
3. Press down on the SIMM gently to seat it firmly in the
socket, bringing the SIMM to its locked position.
You may hear a “click” as the spring latches engage the ends
of the SIMM.
CAUTION: You may feel a slight resistance as the
SIMM locks into position. If the SIMM does not lock,
do not force it. It is very easy to damage the SIMM
socket. Remove the SIMM, reinsert it, wiggle it gently
as you press it into the socket.
Guide
notch
6736
112771-A QI SIMMs Page 6 Tuesday, December 17, 1996 6:45 AM

7
4. Place the DRAM size identification label on the PPX
connector (P1).
The connector is labeled P1 on the baseboard.
The label indicates one of the following DRAM sizes:
8 Meg DRAM
16 Meg DRAM
32 Meg DRAM
SIMM sockets
Place label
on connector
6697.1
8 Meg DRAM
8 Meg DRAM
P1
112771-A QI SIMMs Page 7 Tuesday, December 17, 1996 6:45 AM