Acorn MASTER Econet Manuale di istruzioni per il montaggio - Pagina 4

Sfoglia online o scarica il pdf Manuale di istruzioni per il montaggio per Unità di controllo Acorn MASTER Econet. Acorn MASTER Econet 7.

Stampa la pagina

Installing the ANFS

H a v i n g f i t t e d t h e E C O N E T m o d u l e , i t i s n e c e s s a r y t o f i t t h e

A d v a n c e d Network Filing System (ANFS) ROM.

The ANFS ROM must be inserted into one of three sockets, IC27,37 or

41. It is

possible. If it is not possible to use socket IC27 then one of the

other two sockets may be used, but it will be necessary to change

the position of a link on the main P.C.B (see NOTE 1).

T o

i n s e r t

t h u m b

destination socket. The pin 1 end of the IC (see NOTE 2) should

face to the WEST. If you are unsure of which way round the IC

should be installed, refer to the other ICs on the main PCB which

all face WEST.

Apply firm pressure to the IC, but do not force it. When the

chip is in place it may appear to be slightly raised. Check that

all the pins have entered the socket and that none are bent

either outwards or under the body of the IC.

When the ECONET module P.C.B and the ANFS ROM have been

installed, the re-assembly procedure is the reverse of the dismantling

procedure.

Setting the station number

Before attempting to add a machine to an existing ECONET, the

station number must be set. The network manager should be asked to

carry out this operation.

NOTE 1: Sockets IC37 and 41 share the same address space as four

sideways

d e t e r m i n e w h e t h e r t h e address space is claimed by ROM or sideways

RAM.

These two links are located close to the WEST side of ICs37 and

41 (see fig 1.), LK18 is used with IC41 and LK19 is used with

IC37. These links consist of a three pin plug with a connector

which may be push fitted onto t w o p i n s o f t h e p l u g t o m a k e a

c o n n e c t i o n . T h e r e a r e t w o p o s s i b l e positions for this connector:

EAST - the connector joins the central pin to the right

WEST - the connector joins the central pin to the left

The use of one of the sockets with a ROM will preclude the use of

2K (two 16K pages) of sideways RAM. If both IC37 and IC41 are used

conjunction

s i d e w a y s R A M p a g e s w i l l b e unavailable.

IC27

sideways RAM, you will need to fit the ANFS ROM into an EPROM

cartridge which can then be plugged into one of the cartridge sockets.

Further information about the use of sideways RAM/ROM may be

obtained from part 1 of the MASTER 128 REFERENCE MANUAL.

recommended

t h e

A N F S

a n d

forefinger,

R A M

p a g e s .

hand pin (enables sideways ROM) or

hand pin (enables sideways RAM)

w i t h

already

that

socket

R O M ,

h o l d

t h e

and

line

T h e

p o s i t i o n

s i d e w a y s

R O M s ,

occupied

and

you

IC27

should

e n d s

o f

t h e

all

the

pins

o f

l i n k s

L K 1 8

a l l

f o u r

need

all

used

where

I C

b e t w e e n

over

the

a n d

L K 1 9

o f

t h e

1 6 K

four

pages