MacKay Guardian SOLO, Руководство по эксплуатации и обслуживанию

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MacKay Guardian™ Solo
Operation and Maintenance Guide, v. 1.5
2. MacKay Guardian™ Solo: General Description
The MacKay Guardian™ Solo consists of high strength zinc alloy metal covers and frame,
consisting of an upper front cover assembly attached to a lower frame assembly, mated with a
back cover assembly. All electronic components and sub-assemblies are held or mounted within
the upper front cover assembly and the lower frame assembly.
When placed into and secured into a traditional heavy duty meter housing, there is no longer a
need for a traditional “cap” or cover as the metal front and back cover assemblies also provide
the necessary strength and security previously provided by the old “cap”, while still offering the
public a large user display, numerous payment options and a large rear enforcement display. The
Solo is designed such that when unlocked, the front cover assembly with attached lower frame
assembly can be easily detached and removed from the back cover assembly and meter
housing.
Alternatively the front cover assembly has a unique feature in that it can be detached from the
back cover and hinged open leaving the lower frame assembly in the housing. This allows for the
most common forms of service work such as inspecting/clearing coin chutes, card slots and
battery replacement to be done with the meter held in place freeing up the technicians hands.
The main controller board assembly containing the processor, program memory, and other
circuits together with the rechargeable battery pack and many other electronic components are
secured internally to the front cover assembly, while the coin chute, peripheral boards and main
or non-rechargeable battery pack are secured in the lower frame assembly. All of these
components are easily inspected and serviced when the meter is unlocked and the front cover
assembly is hinged forward into its open/service position.
The lower frame assembly including the coin chute and backplane board plus any optional
peripheral boards such as an RFID Reader Board or vault door sensor interface are electrically
connected to the main controller board by way of a 20-pin ribbon cable. The coin chute is rigidly
held in place when the lower front zinc frame member is attached to the lower back zinc frame
member.
The large main non-rechargeable battery pack is attached to and powers the main board by way
of its own 4-wire harness. It is located in the lower frame assembly and is secured in place by its
own weight in a large plastic battery holder attached to the back of the lower frame assembly.
The appropriate stainless steel coin slot is dropped into place on the lower front frame member.
A hanger on the back of the battery cover allows the meter to be hung to the exterior of the
housing for coin testing.
When viewed from the front, the separate coin and card slots are visible. Both are accessible to
the user when the Solo is properly installed into a mechanism housing. Above and slightly back
is the back-lit graphics LCD, visible through a rectangular opening on the front cover. To the left
of the LCD, are the light sensor and three visual indicator LEDs for use by enforcement and
maintenance staff. The red and green LEDs are used for enforcement or meter status indication,
usually to indicate that the meter is OK/in a valid “time purchased” state or to indicate that the
meter is in an expired state. The yellow LED is used primarily to indicate that service or
maintenance is required. The card slot is for accepting either chip based smart cards, as well as
traditional magnetic stripe type credit cards. The coin slot is used to accept coin payment as well
as allow for communications between the portable data terminal (PDT) and the Solo using the RF
probe interface.
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