ITC 220 Base Station Transceiver Installation Guide PN 133991 Rev. A
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OPERATIONAL CHARACTERISTICS
ITC 220 Base Station Transceivers are designed to satisfy the industry-standard ITC requirements as part of an
integrated 220 MHz radio (ITCR) network supporting the implementation of PTC systems. These Base Station
Transceivers are designed to provide communication in an interoperable fashion enabling messages to occur across
railroad boundaries.
All input and output ports are grounded or shielded. Internal shielding is used within the unit assembly and PCB design
minimizes potential sources of unwanted radio emissions.
CalAmp ITC 220 Base Station Transceivers are available in two configurations, one of which re24 VDC nominal
input power, and the other re48 VDC nominal input power. Both models are almost identical, with the
exception of their nominal input power requirements.
CalAmp ITC 220 Base Station Transceivers have the following operational characteristics, with differences noted where
they appear for +24 VDC and +48 VDC models. (Specifications are subject to change without notice.)
General
Frequency Range:
217.6-222.0 MHz
Channel Spacing:
25 kHz
Temperature Range:
Operating: -30°C to +70°C
Storage: -55°C to +85°C
Operating Humidity:
0 - 95% non-condensing
Frequency Stability:
+/- 0.1 ppm over operating temperature range
DC Input Voltage Range:
48 V model: 42-54 VDC; Damage limit 60 VDC
24 V model: 21-27 VDC; Damage limit 30 VDC
DC Current Drain:
48 V model: Transmit: 6 A (peak) max. into 50 ohm load; 4 A typical;
Receive: 0.6 A max. while receiving
24 V model: Transmit: 11 A (peak) max. into 50 ohm load; 7.5 A typical;
Receive: 1.2 A max. while receiving
DC Power Connector:
Threaded 5/16-18 studs for ring lug connection
Size:
EIA 19" rack compatible, 4U (7") height, occupies 5U (8.75") max. w/vented shelf
Weight:
27 lbs. (12 kg) approximate; <40 lbs. (18 kg) rack w/vented shelf (recommended)
Antenna Connector:
Three (3) Type N female:
One (1) TX/RX (single antenna install),
One (1) RX1 (multi-antenna RX only),
One (1) RX2 (diversity RX only)
GPS Receiver:
Active or passive antenna; Antenna power: 3.3 V 50 mA max;
Antenna connector: TNC female
External Interface:
Two (2) Ethernet 10/100 Mbps:
One (1) data network port, RJ-45;
One (1) maintenance port, RJ-45
Configuration Interface Module (CIM):
SD Card
Display:
Activity and diagnostic LEDs on front panel
Regulatory:
Complies with FCC Parts 2, 15, and 90; Industry Canada SRSP-512
