PrisonPC Requirements

The following requirements cover platform and manageability. PrisonPC deploys and manages tablets via Chrome Enterprise, and the requirements below ensure the device is compatible with PrisonPC’s management framework.

The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in this document are to be interpreted as described in RFC 2119.

1. MUST include 2G or more RAM.
2. MUST include 16G or more storage.
3. MUST support the latest LTS release of Google Chrome OS.
4. MUST support Chrome Enterprise Enrolment.
5. MUST support Factory Reset Protection.
6. Zero-touch enrolment may be valuable for some correctional facilities, especially those deploying a considerable number of tablets.
7. Verified Boot (Verified Boot is common in the majority of COTS tablet devices).
   1. Verified Boot implementation MUST include rollback protection.
   2. The device MUST NOT boot if boot verification fails.

Facility Requirements

PrisonPC has observed, across many correctional facility deployments, that procuring facilities commonly specify requirements beyond those mandated by PrisonPC itself. These are not requirements of the PrisonPC platform; a device meeting only the PrisonPC requirements above will function correctly. They are included here because vendors who anticipate these preferences will be better positioned to meet tender requirements.

1. 20cm (8") to 25cm (10") display. No particular size in this range is consistently preferred; each facility may have their own preference.
2. Glass fascia. Vendors are encouraged to consider the option of stronger tempered glass as some correctional facilities consider this a valuable feature.
3. Internal PSU, or common USB charging. An external PSU is not suitable as it can be used as a flail weapon.
4. Chassis secured to ensure inmates cannot hide physical contraband, perhaps with Tamper-Resistant Torx (also known as Torx TR) or pin-in Torx.
5. Internal speakers.
6. 3.5mm TRS stereo jack and TS mic, or combined TRRS audio jack.
7. Front camera. A rear camera is not necessary, although inclusion of one is likely fine.
8. Internal microphone where facilities intend to use the tablets for communication (e.g., family, legal, or counselling services).
9. No TV receiver.
10. No FM receiver.
11. No cellular modem.
12. No accessible mass storage slots (e.g. SD-Card reader), excepting USB ports for HID devices or power. To reduce manufacturing complexity and cost it is acceptable to include these connectors but leave the device disconnected from the controller.
13. Transparent chassis, with suitable electromagnetic shielding. For high-security facilities, vendors are encouraged to consider an optional transparent chassis.
14. USB-C charging is highly recommended as it is less prone to damage than alternative legacy connectors.
15. Hardened chassis. It is important that any custom chassis does not permit inmates to hide physical contraband.
16. An optional silicone skin, instead of a hardened chassis, for shock protection. Some facilities are willing to accept the manual effort required for physical contraband searches.
17. Tablet rear hand holder.