28
MULTILIN DGPR – INSTRUCTION MANUAL
IRIG-B
CHAPTER 3: INSTALLATION
Connect using Ethernet port
The G60 is connected typically with other devices and to the computer by Ethernet. There
are Ethernet ports on the CPU module at the back of the G60.
Figure 31: Port locations on rear of G60
Connect using RS485 port
There is also a serial RS485 port at the back of the G60 that can also be used for
communication. It is on the CPU module. See the G60 instruction manual for more
information.
RS485 data transmission and reception are accomplished over a single twisted pair with
transmit and receive data alternating over the same two wires. Through the use of these
ports, continuous monitoring and control from a remote computer, Supervisory Control
and Data Acquisition (SCADA) system, or power line carrier (PLC) is possible. To minimize
errors from noise, the use of shielded twisted pair wire is recommended. Correct polarity
also must be observed.
IRIG-B
IRIG-B is a standard time code format that allows stamping of events to be synchronized
among connected devices. The IRIG-B code allows time accuracies of up to 100 ns. Using
the IRIG-B input, the G60 operates an internal oscillator with 1 µs resolution and accuracy.
The GE MultiSync 100 1588 GPS Clock as well as third-party equipment are available for
generating the IRIG-B signal; this equipment can use a global positioning system (GPS)
satellite system to obtain the time reference so that devices at different geographic
locations can be synchronized. See the G60 instruction manual for more information.
;
:
9
8
7
6
3
1
0
/
.
-
+
'
*
)
%
5
E
D
D
E
F
D
E
F
D
E
F
D
E
F
&38PRGXOH
8PRGXOH
&RQWDFW
LQSXWRXWSXW
PRGXOH
&797
PRGXOH
3RZHU
VXSSO\
PRGXOH
$&'5
&797
LQSXWRXWSXW
PRGXOH
&RQWDFW
LQSXWRXWSXW
PRGXOH
0RGHO
0RGV
:LULQJ'LDJUDP
,QVW0DQXDO
6HULDO1XPEHU
)LUPZDUH
0IJ'DWH
321XP
,WHP1XP
*8$+.+)0+300308&:5+
6HHPDQXDO
0$=%
'
129
&RQWURO3RZHU
&RQWDFW,QSXWV
&RQWDFW2XWSXWV
9'&#:9$	$
9'&0D[P$
5HIHUWR,QVWUXFWLRQ0DQXDO
5$7,1*6
*
*HQHUDWRU0DQDJHPHQW5HOD\
;//0'%''
*(0XOWLOLQ
;//0'%''
/,67('
7/
,1'&217(4
(
*URXQG
E
D
,1
$&7
/.
$&7
/.
$&7
/.
56
D
E
F
&RQWDFW
RXWSXW
PRGXOH
5HGXQGDQW
SRZHUVXSSO\
PRGXOH
E
D
(WKHUQHW
