Hitachi TransPortal, Installation, Operation, Troubleshooting

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TransPortalTM Interlock Monitor
Copyright 2019 SM-1H1.0002 Rev. 2, March 2019 6-2
GPS Global Positioning System, world-wide latitude and
longitudinal position determination network which also
provides accurate synchronized time of day.
GSM Global System for Mobile communications: originally
from Groupe Spécial Mobile) is a global form of
cellular communications, contrasted with CDMA.
HMAC Hash-keyed Message Authentication Code, a complex
data packet used to implement data encryption and
security.
IMSI International Mobile Subscriber Identity, a unique
number associated with all GSM, CDMA, and UMTS
network mobile devices.
IO or I/O Input/Output points.
IP Internet Protocol, a networking term implying the use
of standard TCP/IP networking protocol.
LAN Local Area Network
LCD Liquid Crystal Display
LED Light Emitting Diode
LOD Lamp Outage Detector, an electronic warning lamp
circuit monitor manufactured by General Electric
transportation Systems (fka Harmon).
MAC Media Access Controller, a globally unique address of
a networking port, typically associated with an RJ-45
jack.
MD5 CHECKSUM Message-Digest algorithm 5 is a widely used
cryptographic hash function with a 128-bit hash value
data validation parameter that guarantees the
authenticity of data, in this case used by the
TransPortal event recorder to authenticate event data
records.
MIN Mobile ID Number, the unique cellular address of a
CDMA or GSM connected device.
NAT Network Address Translation, the process of modifying
network address information in datagram packet
headers while in transit across a traffic routing device
for the purpose of remapping a given address space
into another.
NEMA National Equipment Manufacturers Association,
provides a standard rating system for characterizing
the environmental qualifications of outdoor equipment
and enclosures .
PIO Physical I/O (input/output), the TransPortal service
that correlates physical I/O connections to TransPortal
RNAMES.
RNAME Reserved Name, the label of a data field used by the
TransPortal to evaluate monitored points within alarm
determination services.
RS-232 Common serial communication protocol.