Fairbanks X SERIES PR 5220 ETHERNET TRANSMITTER - Manual (Page 20)

Section 3: Installing the Instrument
05/11 21 51209 Revision 2
3.2.7 RS-422/485 Interface
The interface is intended for connecting a PR 1627 type remote display, a PR 1628 terminal or a
PC for data transmission using the SMA protocol.
Connection method: 4-pin plug-in terminal block
Number of channels /
type: 1 RS-422 / RS-485 , full / half duplex
Transfer rate (Bits/s): 300, 600, 1200, 2400, 4800, <9600>,
19200
Bits / stop bits: <8 / 1> or 7 / 1
Parity: ,
Signals: RxA (R-), RxB (R+), TxA, TxB
Electrical isolation: Yes
Cable length: Max. 1000m
Cable type: Shielded twisted pair (e.g. LifYCY
2x2x0.20)
<...> = default settings (factory settings)
Connection of a PR 1627 remote display or of a PR 1628/00, -/60 or -/24 terminal
(over the PR 1604 interface)
The following operations are possible from the
connected terminal / display:
Test
Set tare
Reset tare
Set zero
S300
ON <----- OFF ----->
2-wire connection (d) 4-wire connection
(d) Receiver terminating resistor 'ON' Receiver terminating resistor 'OFF'
(d) Transmitter (rec.) terminating resistor
'ON' Transmitter (rec.) terminating resistor 'OFF'
Calibration data and parameters
secured (d) Calibration data and parameters not
secured
(d) - default = factory setting