Operations and Maintenance Manual

_
JANUS
®
Multi-Protocol Reader 2.4 Maintenance Instructions
Confidential UM 360467-110 Revision: B Page 156 of 247
© Kapsch TrafficCom Canada Inc. 2021
All information contained herein is proprietary to, and may only be used with express, written permission from, Kapsch TrafficCom Canada Inc.
FILE: UM 360467-110 REV B3 MPR 2.4 CLEAN.DOCX 03/02/2021 1:01
Kapsch TrafficCom
Installing a Lane Kit
Installing an Antenna
1. The antenna mounts on a frame using 2-inch diameter galvanized pipe clamps. For 12 ft wide lanes position
the center antenna at lane center of the defined lane. For ORT applications with 12 ft wide lanes, the
straddle antenna must be at the midpoint between the left and right antennas. Note straddle min/max
measurements in Table 5-2.
2. Orient the weep holes down, such that the radome is facing oncoming traffic.
Using a tilt meter, measure the road pitch and cross lane slope directly under each IAG antenna. Record the results.
Using a tilt meter, align each antenna plate to the tilt angle specified in Table 5-2, in relation to the road pitch
measured in step 0 (e.g., If the road pitch is 2 degrees and the desired antenna tilt is 15 degrees, mount the antenna
at 17 or 13 degrees depending on the pitch of the road.)
Ensure that the height of the antenna at the center of the radiating face of the antenna as tilted falls within the height
range given Table 5-2. Please contact Kapsch Technical Service when considering mounting the antennas outside
the specified heights.
Adjust the roll angle of the antenna equal to 0 degrees with respect to the cross lane slope obtained in step 0.
For TDM-only protocol, an ORT antenna installation may be all antennas (IAG 1 or IAG 2 or IAG 3) inline across the
roadway as shown in Figure 5-5.
For all passive protocols an ORT antenna installation must be all antennas (IAG 3 only) staggered across the
roadway as shown in Figure 5-6.
Table 5-2: Antenna mounting and lane configuration
Antenna
Application
Lane Width
Height
ORT Tilt
(off
horizontal)
Straddle (min/max
c to c)
IAG-3
ORT
All Protocols
12 ft. (3.65 m.)
16 - 19 ft.
4.88 - 5.79 m
10 deg.
5.5 ft.(1.68 m)/6.5ft.(1.98 m)
IAG-3
Plaza
All Protocols
12 ft. (3.65 m.)
14 - 19 ft.
4.27 – 5.79 m
10 deg.
IAG-1
ORT or Plaza
TDM Only
12 ft. (3.65 m.)
14 - 17 ft.
4.27 - 5.18 m
10 deg.
5.5 ft.(1.68 m)/6.5ft.(1.98 m)
IAG 1
Plaza
TDM,6C, SeGo
12 ft. (3.65m)
14 - 17 ft.
4.27 – 5.18 m
10 deg.
IAG-2
Plaza
TDM,6C,SeGo
Up to 50 Mph.
12 ft. to 16 feet
(3.65m)
9 – 16 ft.
2.74 – 4.88 m
10 deg.
IAG-2
Plaza
TDM Only
12 ft. to 16 feet
(3.65m)
9 – 16 ft.
2.74 – 4.88 m
10 deg.
IAG-2
ORT
12 ft. (3.65m)
16-18 ft
4.27-5.49 m
10 deg.
5.5 ft.(1.68 m)/6.5ft.(1.98 m)