![Sharp ER-A457 Service Manual Download Page 2](http://html.mh-extra.com/html/sharp/er-a457/er-a457_service-manual_366616002.webp)
CHAPTER 1. OVERVIEW
1. GENERAL
This is a specification of the on-line data communication via RS-232
interface of the ER-A
457
It enables the ER-A
457
to perform on-line communication.
For on-line data communication a ER-
457
can be connected
to a host computer. Also, their connection can be made via modems.
We support mainly the following functions.
a) The function of ONLINE
1) Down load of ECR data
(ECR
←
PC)
2) Up load of ECR data
(ECR
→
PC)
3) RJE (Remote job entry) function (ECR
←
PC)
4) ELECTRONIC MAIL function
(ECR
←
PC)
CHAPTER 2. SYSTEM
CONFIGURATION
1. GENERAL
Online data communication is allowed only when RS232 channel
presets at PGM2 mode.
2. Online data communication
(a) Direct connection
Host computer
ER-A
457
Host computer
ER-A
457
Modem
Modem
* The picture of ECR is shown the ordinary ECR.
(It may not be same design as ER-A
457
.)
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