Chapter 3. Transmission System Specifications - Sharp ER-A57R1 Service Manual

3. Components
NO
1 PWB UNIT
2 PWB BRACKET
3 CONNECTOR BRACKET
4 SCREW (FOR HOLDING OF THE PWB AND PWB BRACKET)
SCREW (FOR : PWB BRACKET AND PWB BRACKET, PWB BRACKET AND MAIN CHASSIS,
5
GND WIRE.)
6 WIRING TIE
7 SPACER
8 FERRITE CORE (FOR INTERNAL CABLE)
9 INTERNAL CABLE
10 BNC-T CONNECTOR
CHAPTER 3. TRANSMISSION
SYSTEM SPECIFICATIONS
1. Transmission Method
1) Carrier sense multiple access with collision detect (CSMA/CD)
2) Single channel, half duplex
3) High level data link controller (HDLC)
2. Transmission Medium
1) Topology: Common Bus System
2) Coaxial cable RG-58/u
3. Transmission Speed
480KBPS/1MBPS (Selectable) ... SRV mode JOB#922.
4. Data Transfer Method
Packet-data transfer method
Data side of 1 paket is MAX. 270 Byte.
Tetminator
50 Ω
R
Branch
cables
(5m x 2)
16.4ft.
x 2
*Master
*NOTE: The master can be located anywhere within the SRN (IRC) network configuration.
MANE
Trunk cables
Satellite Satellite
Fig. 3-2 physical organization
5. Maximum Length of Transmission
Cable
1000m (3281 ft) . . . trunk cables + branch cables; however, branch
cable length is 10m (5m
6. Max Terminals
16 Terminals max. (15 satellites, 1 master)
7. Physical Organization
The branch cable is not included in the standard accessories of the
ER-A6IN. Please order with the following code.
PARTS CODE
QCNW-6835RCZZ
QCNW-6835RCZZ
1 ™ 3
PARTS CODE
CPWBX7317RC01
LANGT7466RCZ Z
LANGT7510RCZ Z
LX –BZ6665RCZZ
LX–BZ6774R CZZ
LBNDJ2004SCZ Z
PSPAN7039XCZZ
RCORF6666 RCZZ
QCNW–6856RCZ Z
QCNC–6811RC 0C
2) for each terminal.
PRICE RANK DESCRIPTION
BM Branch cable
5m (16.4ft)
Fig. 3-1
Cable connector
JJ conector
Satellite Satellite
Q'ty
1
1
1
2
5
1
1
1
1
1
R