Modules RS422/485 and RS232
Modules serve to transfer data between FAS interface
and REGGAE communicators The standard of input and
output modules RS422/485 fully conform to standards
ANSI RS-485 and ISO 8482:1987(E) The standard of input
and output module RS232 fully conforms to standards
EIA-232-F and ITU V 28
Modules RS422/485 and RS232 ensure the insulation of
the communication channel RS2 from the remaining parts
of the communicator The strength of insulation between
the communication channel and the remaining circuits of
the communicator is a minimum of 1 kVAC (50 Hz)
Connecting modules RS422/485
The meanings of each terminal on the circuit board of the
module RS485 in relation to the REGGAE GTbz485 com-
municator are as follows:
The length of the connecting cable for the communica-
tion serial port RS422/485 may be a maximum of 1000m
taking into account possible disturbances and overall ca-
pacity The recommended type of cable is UTP If a STP
cable is used, the shielded cable is connected to terminal
„RGND“
Short-circuit connectors J1 to J5 are configurated by mo-
dule RS422/485 according to requested type of interface
Closed connector J1 is connected to end resistor 120 Ω
between inputs A-B Closed connectors J3 and J4 conne-
ct inputs A/B with outputs Y/Z for interface RS485 Clo-
sed pins 1 and 2 of connector J5 set a positive idle-circuit
level at input A/B Closed pins 2 and 3 of connector J5
set a negative idle-circuit level at input A/B To ensure the
correct function setting of the idle-circuit level using co-
nnector J5, connector J2 must be closed For configurati-
on of the module at interface RS485, it is usual to use all
connectors For interface RS422 it is usual to close only
connector J1
Connecting modules RS232
The meanings of each terminal on the circuit board of the
module RS232 in relation to the REGGAE GTbz232 com-
municator are as follows:
The length of the connecting cable for the communica-
tion serial port RS232 may be a maximum of 15 m taking
into account possible disturbances and overall capacity
The overall capacity for each signal conductor again-
st grounding of communication lines cannot exceed
approx 2000pF
Terminal
Y
Z
A
B
RGND
Meaning
Data output Y
Data output Z
Data input A
Data input B
Signal - Reverse ground
Terminal
T×D
RTS
CTS
R×D
RGND
Meaning
Data output
RTS output
CTS input
Data input
Signal – Reverse ground
U
S
E
R
M
A
N
U
A
L
REGGAE GT/GTbz
Communicator for GSM (GPRS/SMS) transmission
www.namsystem.com
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