ComAp InteliGen NTC User Manual

Communication Guide, ©ComAp – March 2014 75
IGS-NT Communication Guide 03-2014.pdf
Appendix
Communication cables
Recommended communication cables for ComAp controllers
Interface
Cable
Connector
max. Length
Max. Comm.
Rate
RS232
Serial cross-wired cable
standard Null-modem cable
DB 9
DB 9
10 m
57.6kBd
RS485
Shield twisted pair
1)
NONE
1000 m
57.6kBd
Ethernet
STP or UTP cable
RJ45
100 m
10/100 Mbps
USB
Standard USB A-B cable
USB A-USB B
5 m
115200 Bd
CAN
Shield twisted pair
2)
NONE
200 m / 900 m
250 kBd
1) RS 485 cable
B) For longer distances: 3106A Paired - EIA Industrial RS-485 PLTC/CM (1x2+1 conductors)
Recommended data cables: BELDEN (http://www.belden.com)
A) For shorter distances: 3105A Paired - EIA Industrial RS-485 PLTC/CM (1x2 conductors)
2) CAN bus cable
Galvanically separated
Maximal CAN bus length 200m Speed 250kBd
Nominal impedance 120Ω
Cable type twisted pair (shielded)
Following dynamic cable parameters are important especially for maximal 200 meters CAN bus length
and 32 iS-COM units connected:
Nominal Velocity of Propagation min. 75% (max. 4,4 ns/m)
Recommended data cables: BELDEN (http://www.belden.com)
A) For shorter distances: 3105A Paired - EIA Industrial RS-485 PLTC/CM (1x2 conductors)
B) For longer distances: 3106A Paired - EIA Industrial RS-485 PLTC/CM (1x2+1 conductors)
In case of surge hazard: 3106A Paired - EIA Industrial RS-485 PLTC/CM (1x2+1 conductors)
RS232 cable
It is recommended to use standard Null-modem cable for local connection between controller and PC,
although the three wires (TxD, RxD, GND) RS 232 connection is enough for direct controller to PC
communication:

ComAp InteliGen NTC Specifications

General

Brand	ComAp
Model	InteliGen NTC
Category	Controller
Language	English