Axis Communications - AXIS 700 Support

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Memory Expansion

The AXIS 700 is discontinued and the information about this product is for reference only.

The 2 Mbytes of RAM memory in the AXIS 700 Network Scan Server can be expanded up to 32 Mbytes if required. The RAM is used for temporary storage of scanned image data. If LDAP or FTP is used to load external e-mail destinations these also use the RAM.

Expansion of the RAM is normally not needed. If the AXIS 700 Network Scan Server aborts scanning and shows the 'Out of memory' message, additional memory is recommended. This can happen with big paper sizes and when limited compression is achieved due to complexity of the scanned document. If LDAP or FTP external e-mail destinations are used and the list is large additional memory can avoid the list to be flushed during scanning.

The memory modules to be used are SO-DIMMs according to the specifications. An additional PLD chip (Programmable Logic Device) must also be added to the AXIS 700 Network Scan Server to enable addressing of the expanded memory. The PLDs can only be obtained from Axis Communications.

Expanding the RAM

Memory modules

The required memory expansion modules are 72 pin SO-DIMM Modules (no parity). They may be either 4 Mbytes or 16 Mbytes in size and up to two expansion modules may be added. Where two memory expansion modules are used they must be of equal size. The modules should be mounted in the positions indicated as X5 and X6 on the drawing of the scan server Printed Circuit Board (PCB) at the bottom of this page. Specifications for the expansion modules are given below.

4 Mbytes Modules

5 volts, based on 1*4 Mbytes chips, CAS before RAS refresh, RAS only refresh, Hidden refresh and Fast Page Mode capability, 1 kbyte refresh. Use the modules mentioned below or equivalent.

Manufacturer	Type
Toshiba	THL321050ATG-6 (1M*32, 60 ns)
Enhanced Memory Products	EDM0132G-6H (1M*32, 60 ns)

16 Mbytes Modules

5 volts, based on 4*4 Mbytes chips, CAS before RAS refresh, RAS only refresh, Hidden refresh and Fast Page Mode capability, 2 kbytes refresh. Use the modules mentioned below or equivalent.

Part No	Description
14799	16MB SO-DIMM Module

PLD chip to be added

In order to expand the memory a PLD (Programmable Logic Device) with Part No. 15296 is required. This should be mounted in the position indicated as D22 on the drawing of the scan server Printed Circuit Board (PCB) at the bottom of the page.

The PLD is delivered from Axis and can be ordered in packages of 1 or 6 chips according to the following part numbers.

Part No	Description
15249	PLD - package with 1 (one) chip
15250	PLD - package with 6 (six) chips

Possible Memory Configurations

The options for configuring the server memory are outlined below. Please note that the scan server continues to use the original 2 Mbytes RAM if the total memory extension is 4 Mbytes. If the total memory extension exceeds 4 Mbytes the original 2 Mbytes RAM are no longer used.

Position D9 Original RAM	Position D22	Position X5 (DIMM-A)	Position X6 (DIMM-B)	Used Memory
2 Mbyte				2 Mbyte
2 Mbyte	PLD	4 Mbyte		6 Mbyte
2 Mbyte	PLD		4 Mbyte	6 Mbyte
2 Mbyte	PLD	4 Mbyte		16 Mbyte
2 Mbyte	PLD	4 Mbyte	4 Mbyte	32 Mbyte

Options for configuring the RAM of the scan server

Installation Instructions

Caution

Always use an antistatic bracelet when handling the memory and PLD chips.

Unplug the power supply from the scan server.
Remove the server casing and disconnect cables to the user interface.
Identify position D22 as indicated on the scan server PCB drawing at the bottom of this page.
Mount the PLD. Please note that one of the corners is cant in order to prevent incorrect mounting of the chip.
Identify positions X5 and X6 as indicated on the scan server PCB drawing below.
Mount the first DIMM module by sliding it into one of the sockets at an angle of 45 degrees. Once the DIMM is fully inserted press it downwards, towards the scan server PCB, until the socket locks the module into place.
Please note that the module edge is cut away at one corner only, in order to ensure correct mounting in the socket.
Repeat steps 5 and 6 for the second DIMM if required.
Assemble the scan server, i.e. replace the casing and connect the cables to the user interface.
Power up the scan server. The new memory modules are automatically identified and the usage optimized by the scan server. The power up time will be longer with the added memory.

The PCB of the AXIS 700 Network Scan Server