IB IL 24 MUX MA-PAC
38
PHOENIX CONTACT
5981_en_06
Version 3
(not recommended)
If all that is available is an unshielded 2-wire remote bus cable, the surge arrester can only
be connected to the DATA and DATA signals.
Figure 5-4
Basic circuit diagram: Remote bus protection, version 3
Version 4
(not recommended)
If protection of the remote bus cable is omitted to reduce costs, the field multiplexers must
be connected, as shown in Figure 5-5. Surge protection is not provided in this version.
Phoenix Contact can therefore not recommend it. The user bears the risk for any
consequential damage.
Figure 5-5
Circuit diagram: No remote bus protection
F i e l d
M u l t i p l e x e r
A
D A T A
G N D
D A T A
S h i e l d
D A T A
F i e l d
M u l t i p l e x e r
B
D A T A
G N D
D A T A
S h i e l d
D A T A
S
u
rg
e
p
ro
te
c
ti
o
n
8
1 0
4
1 2
7
9
3
1 1
S
u
rg
e
p
ro
te
c
ti
o
n
7
9
3
1 1
8
1 0
4
1 2
R e m o t e b u s c a b l e
I N
O U T
I N
O U T
5 9 8 1 B 0 2 9
ACHTUNG:
This connection version is not to be used if the DATA and DATA wires are not a twisted
pair. The shield must be grounded at both ends of the remote bus cable. To avoid any
occurrence of voltage equalization currents, the shield of the remote bus cable of a field
multiplexer station should be grounded with a TERMITRAB-SLKK5-F/110AC modular
terminal block (see TRABTECH catalog from Phoenix Contact).
F i e l d
M u l t i p l e x e r
A
D A T A
G N D
D A T A
S h i e l d
D A T A
F i e l d
M u l t i p l e x e r
B
D A T A
G N D
D A T A
S h i e l d
D A T A
R e m o t e b u s c a b l e
5 9 8 1 A 0 3 0
T E R M I T R A B
Summary of Contents for 2861205
Page 1: ...User manual Configuring and installing the Inline field multiplexer...
Page 6: ...IB IL 24 MUX MA PAC 6 PHOENIX CONTACT 5981_en_06...
Page 26: ...IB IL 24 MUX MA PAC 26 PHOENIX CONTACT 5981_en_06...
Page 64: ...IB IL 24 MUX MA PAC 64 PHOENIX CONTACT 5981_en_06...
Page 86: ...IB IL 24 MUX MA PAC 86 PHOENIX CONTACT 5981_en_06...