Honeywell CENTRA LINE EAGLEHAWK - Lonworks Communications; General Information; Connecting to a LON WORKS Network

EAGLEHAWK CONTROLLER – INSTALLATION & COMMISSIONING INSTRUCTIONS
19 EN1Z-1005GE51 R0216
LONWORKS COMMUNICATIONS
General Information
The EAGLEHAWK can be connected to LONWORKS networks.
This requires the use of an IF-LON (see section "IF-LON"
below), which is then plugged into to the EAGLEHAWK's USB
2.0 Host Interface (see also section "USB 2.0 Host Interface"
on pg. 5).
This permits individual EAGLEHAWK controllers to be
connected / disconnected from the L
ONWORKS network
without disturbing the operation of other devices.
The L
ONWORKS network is insensitive to polarity, eliminating
the possibility of installation errors due to miswiring.
Different network configurations (daisy-chain, loop, and star
configurations, or any combination thereof) are possible (see
also Excel 50/500 L
ONWORKS Mechanisms Interface
Description, EN0B-0270GE51).
Connecting to a LONWORKS Network
IMPORTANT
Do not bundle wires carrying field device signals or
L
ONWORKS communications together with high-voltage
power supply or relay cables. Specifically, maintain a
min. separation of 3 inches (76 mm) between such
cables. Local wiring codes may take precedence over
this recommendation.
IMPORTANT
Try to avoid installing in areas of high electromagnetic
noise (EMI).
Cable Types
The unit must be wired to the LONWORKS network using either
 level IV 22 AWG (Belden part number 9D220150)
or
 plenum-rated level IV 22 AWG (Belden part number
9H2201504) non-shielded, twisted-pair, solid-conductor
wire.
When possible, use Honeywell AK3781, AK3782, AK3791, or
AK3792 cable (US part numbers). See Excel 50/5000
L
ONWORKS Mechanisms, EN0B-0270GE51, for details,
including maximum lengths.
Use wire with a minimum size of 20 AWG (0.5 mm
2
) and a
maximum size of 14 AWG (2.5 mm
2
).
IF-LON
The IF-LON is equipped with a free-topology transceiver
(FTT10A) for communication (at a data transmission rate of
78 Kbaud) on L
ONWORKS® networks (using the LonTalk
protocol).
The L
ONWORKS network is insensitive to polarity, eliminating
the possibility of installation errors due to miswiring. Different
network configurations (daisy-chain, loop, and star con-
figurations, or any combination thereof) are possible. See
Excel 50/5000 L
ONWORKS Mechanisms (EN0B-0270GE51)
for details.
IF-LON
Fig. 30. IF-LON
See also IF-LON – Mounting Instructions (MU1B-0545GE51).
Depending upon the chosen network configuration, one or two
terminations may be required.
The following LONWORKS termination module is available:
 L
ONWORKS connection / termination module
(mountable on DIN rails and in fuse boxes),
order no.: XAL-Term2
LONWORKS TERMINATION
PLUG-IN JUMPER
FTT/LPT
FREE TOPOLOGY:
52.3 OHM
100 μ
100 μ
52.3 Ohm
1
2
FTT/LPT
BUS TOPOLOGY:
105 OHM
100 μ
100 μ
105 Ohm
1
2
1
5
2
3
4
6
3
1
5
6
2
4
REMOVABLE SCREW-TYPE
2-POLE TERMINAL BLOCK
FTT/LPT BUS FTT/LPT FREE
PARK POSITIO N
(NO TERMINATION)
Fig. 31. L
ONWORKS connection and termination module