Hitachi EH-150 Applications Manual page 10

2.4 Differences with upper level H series equipment
Table 2.4 shows the differences between the EH-LNK and the LINK-SH CPU link module (single-slot,
coaxial cable) and the LINK-H (twin-slot, coaxial cable) for use with large upper level H series equipment,
and the LINK-02H CPU link module (coaxial cable) for use with the medium H series.
Item
Usable CPU module
Slot width
Bypass relay*
7 segment display
Module information
display LED
Error indication
select switch
Check mode select
switch
Mount position
Mount units
*1: There are cases where support is not yet available depending on the CPU version. Refer to section 1.3 for
further details.
*2: A bypass relay is the device to pass the data from other stations at the time of power supply off.
*3: LINK-SH cannot be installed into slot #0.
*4: A maximum of two modules that have been I/O assigned as "CPU Links" can be installed. When
modules other that this module (EH-RMP, etc.,) are assigned as "CPU Links" and installed, the number
of CPU link modules that can be installed will be reduced in direct relation to the number installed.
Table 2.4 Differences with upper level H series equipment
EH-LNK
EH-CPU308A,
EH-CPU316A,
1
EH-CPU448*
1 slot
2
Exist
( No bypass cassette or
bypass module )
None
RUN, ERR, TXD, RXD ERR, SEND, REC
None
None
Can be installed in slots
#0 to #2 on the basic
base.
Max. 2 units per CPU*
LINK-H / LINK-SH
CPU3-40H,
CPU2-20H, CPU-20Ha,
CPU2-10H,
CPU2-07H, CPU-07Ha,
CPU2-03H, CPU-03Ha
1 slot ( LINK-SH )
2 slots ( LINK-H )
Fitted with a bypass
cassette as standard.
displays error
information
Select error indication
Selects check mode
Can be installed in any
slot on the basic base. *
4
Max. 2 units per CPU
2-2
Chapter 2. Specifications
LINK-02H
CPU22-02HB,
CPU22-02HC,
CPE22-02HC
2 slots
(in case bypass
module is used )
Fitted with a bypass
Module as standard
None
RUN, ERR
None
None
Can be installed in
3
any
slot on the basic base.
Max. 2 units per CPU