PHOENIX CONTACT Inc., USA Page 1 / 6
http://www.phoenixcon.com Jan 19, 2011
Extract from the online
catalog
MT-RS485-TTL
Order No.: 2749398
The illustration shows version MT-RS485/S
http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=2749398
Rail-mountable module with surge voltage coarse and fine protection
for RS-485 interface, with TTL level, for mounting on NS 35/7.5,
housing width: 50 mm
Commercial data
GTIN (EAN)
4 017918 104962
sales group J420
Pack 5 pcs.
Customs tariff 85363010
Catalog page information Page 100 (TT-2002)
Product notes
WEEE/RoHS-compliant since:
04/27/2006
http://
www.download.phoenixcontact.com
Please note that the data given
here has been taken from the
online catalog. For comprehensive
information and data, please refer
to the user documentation. The
General Terms and Conditions of
Use apply to Internet downloads.
Technical data
General
Color black
Ambient temperature (operation) -40 °C ... 80 °C
Mounting type DIN rail: 35 mm
Design Rail-mountable module, one-piece
MT-RS485-TTL Order No.: 2749398
http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=2749398
PHOENIX CONTACT Inc., USA Page 2 / 6
http://www.phoenixcon.com Jan 19, 2011
Degree of protection IP20
Direction of action Line-Line & Line-Signal Ground/Shield & Signal Ground/Shield-
Earth Ground
Width 47.60 mm
Height 54.90 mm
Length 77.50 mm
Protective circuit
IEC category C2
C3
D1
VDE requirement class C2
C3
D1
Nominal voltage UN5 V DC
Maximum continuous voltage UC (wire-ground) 5.8 V DC
Nominal current IN450 mA (25°C)
Operating effective current IC at UC≤ 2 mA
Nominal discharge surge current In (8/20) µs
(Core-Core)
10 kA
Nominal discharge surge current In (8/20) µs
(Core-Earth)
10 kA
Max. discharge surge current Imax (8/20) µs
maximum (Core-Core)
10 kA
Max. discharge surge current Imax (8/20) µs
maximum (Core-Earth)
10 kA
Max. discharge surge current Imax (8/20) µs
maximum (Core-GND)
10 kA
Output voltage limitation at 1 kV/µs (Core-Core)
spike
≤ 9 V
Output voltage limitation at 1 kV/µs (Core-Earth)
spike
≤ 450 V
Output voltage limitation at 1 kV/µs (Core-Core)
static
≤ 9 V
Output voltage limitation at 1 kV/µs (Core-Earth)
static
≤ 450 V
Output voltage limitation at 1 kV/µs (Core-GND)
static
≤ 9 V
Residual voltage at In, (conductor-conductor) ≤ 9 V
Residual voltage at In, (conductor-GND) ≤ 9 V
MT-RS485-TTL Order No.: 2749398
http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=2749398
PHOENIX CONTACT Inc., USA Page 3 / 6
http://www.phoenixcon.com Jan 19, 2011
Protection level UP (Core-Core) ≤ 9 V
Protection level UP (Core-Earth) ≤ 450 V
Protection level UP (Core-GND) ≤ 9 V
Response time tA (Core-Core) 1 ns
Response time tA (Core-Earth) ≤ 1 ns
≤ 100 ns
Input attenuation aE, sym. Typ. 0.1 dB (up to 40 kHz 150 Ω system)
Typ. 0.1 dB (Up to 10 kHz)
Input attenuation aE, asym. 0.5 dB (up to 0.1 MHz 50 Ω system)
0.1 dB (up to 10 kHz 600 Ω system)
Cut-off frequency fg (3 dB), asym. (GND) in 50
Ohm system
600 kHz
Cut-off frequency fg (3 dB), asym. (GND) in 150
Ohm system
200 kHz
Cut-off frequency fg (3 dB), asym. (GND) in 600
Ohm system
50 kHz
Resistance in series 4.4 Ω
Connection data
Type of connection Screw connection
Connection type IN Screw terminal blocks
Connection type OUT Screw terminal blocks
Screw thread M3
Stripping length 8 mm
Conductor cross section stranded min. 0.2 mm²
Conductor cross section stranded max. 2.5 mm²
Conductor cross section solid min. 0.2 mm²
Conductor cross section solid max. 4 mm²
Conductor cross section AWG/kcmil min. 24
Conductor cross section AWG/kcmil max 12
Connection, protective circuit
Standards/regulations Draft IEC 64644-1
E VDE 0845-3-1
MT-RS485-TTL Order No.: 2749398
http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=2749398
PHOENIX CONTACT Inc., USA Page 4 / 6
http://www.phoenixcon.com Jan 19, 2011
Certificates / Approvals
Certification GOST
Additional products
Item Designation Description
Assembly
2839295 SSA 3-6 shield fast connections for conductor diameter 3 - 6 mm. Potential
connection cable: 200 mm, black
2839512 SSA 5-10 Shield fast connection for conductor diameters 5 - 10 mm.
Potential connection cable: 200 mm, black
Diagrams/Drawings
Diagram
Characteristic attenuation curve
MT-RS485-TTL Order No.: 2749398
http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=2749398
PHOENIX CONTACT Inc., USA Page 5 / 6
http://www.phoenixcon.com Jan 19, 2011
Dimensioned drawing
Circuit diagram
MT-RS485-TTL Order No.: 2749398
http://eshop.phoenixcontact.de/phoenix/treeViewClick.do?UID=2749398
PHOENIX CONTACT Inc., USA Page 6 / 6
http://www.phoenixcon.com Jan 19, 2011
Address
PHOENIX CONTACT Inc., USA
586 Fulling Mill Road
Middletown, PA 17057,USA
Phone (800) 888-7388
Fax (717) 944-1625
http://www.phoenixcon.com
© 2010 Phoenix Contact
Technical modifications reserved;