Telemetry - The Davicom MAC

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The Davicom MAC system

The MAC hardware range spans three models: MicroMAC, MiniMAC and MAC208/216. The latter may be networked to form a ‘SuperMAC’ unit to handle a large number of inputs/outputs. All the units use the MacComm interface software which is included with each hardware purchase.

The MAC system Monitors various inputs, integrates the information with the unit’s powerful programmable logic, and from that generates Alarm messages and Control outputs.

Inputs may be taken from any equipment or sensor which gives either an analogue (voltage or current) output representing, for instance, audio or video levels, RF power, temperature, power consumption, wind speed, fuel level, etc. or a digital indication of status (on/off, OK/fail, etc.).

Your personnel can receive Alarm messages as e-mails, mobile SMS text messages, vocalised phone calls, pager alerts, or faxes. Alarms can also be sent to other equipment as SNMP traps, or to the MacNet multi-site alarm management software.

Units may be interrogated by PC using the MacComm software (over landline, mobile phone, RF link, satellite or IP network), or by DTMF (over landline or mobile phone).

Outputs feed back to the connected equipment to control it, either automatically by the MAC itself in response to the alarm states, or manually via the MacComm remote control software interface.

MacComm software

MacComm is the software program used for communications, remote control and configuration of MAC units. It is Windows®-based, and may be run on any number of PCs so whoever in your organisation, wherever they are, can have access, password-protected at a permission level of your choice.

It is through MacComm that the unit is configured. The configuration of inputs is powerful and flexible. Analogue input signals can be manipulated by maths functions so, for instances, non-linear probe characteristics can be linearised within the unit. AC voltages may be full-wave rectified (not MicroMAC) and presented on a logarithmic scale, which is especially useful for audio level monitoring. Multi-level alarm thresholds may be set, alarms designated as major or minor, alarms sent on failure and restoration of service, and alarms from individual channels routed to specific recipient teams. There is full flexibility to introduce delays and hysteresis before alarming, and actions can be made dependant on timers for routine scheduled operations, or to suppress or activate certain alarms out-of-hours for instance.

Comparison table:

Feature	MicroMAC	MiniMAC2	MAC208	MAC216	SuperMAC
Metering Inputs	8	8	8	16	up to 64
Status Inputs	8	16	16	32	up to 128
Internal SPDT 60W Relays	8	8	16	32	up to 128
Range of metering inputs	0-5 VDC	±2.5, ±10, ±20V	±2.5, ±10, ±20V	±2.5, ±10, ±20V	±2.5, ±10, ±20V
4-20mA mode on metering inputs	NO	YES	YES	YES	YES
Audio detection on metering inputs	NO	YES	High precision True-RMS option	High precision True-RMS option	High precision True-RMS option
Aux Serial Ports (for tunneling to other devices)	NO	1	4	8	8
RS-232 port on front panel	NO	YES	YES	YES	YES
Ethernet ports	1	2	2	2	2
SNMP	NO	V2	V2	V2	V2
RS-232 over IP	NO	YES	YES	YES	YES
Real Time Clock (RTC)	STD stability	TCXO, Hi Stab	TCXO, Hi Stab	TCXO, Hi Stab	TCXO, Hi Stab
Internal Flash ROM	32MB	64MB	64MB	64MB	64MB
Internal RAM	32MB	96MB	96MB	96MB	96MB
Audio port monitoring over dial-up	1	2	4	4	8
Audio port monitoring over IP streaming	0	2	4	8	8
Front-panel buttons	Local	Pause/Local	Pause/Local	Pause/Local	Pause/Local
Networkable for a SuperMAC	NO	NO	YES	YES	YES
Rack space	1 RU, half width	1 RU	2 RU	2 RU	up to 8 RU
Dimensions	(W x H x D) 8 1/2 X 1 3/4 X 12 in 21.6 X 4.4 X 30.5 cm	(W x H x D) 19 X 1 3/4 X 12 in	(W x H x D) 19 X 3 1/2 X 12 in 48.3 X 8.9 X 30.5 cm	(W x H x D) 19 X 3 1/2 X 12 in 48.3 X 8.9 X 30.5 cm	Multiply H by number of MACs in SuperMAC
Weight	3 lbs (1.4 kg) dry 9 lbs (4.1 kg) shipping	8 lbs (3.6 kg) dry 9 lbs (4.1 kg) shipping	8 lbs (3.6 kg) dry 9 lbs (4.1 kg) shipping	10 lbs (4.5 kg) dry 11 lbs (5 kg) shipping	Multiply by number of MACs in SuperMAC

Current users include:

The MAC is already in use in many countries around the world including Canada, USA, UK, Australia, Taiwan, Thailand, Kenya, Germany, Seychelles, Malaysia, Ivory Coast, Kuwait, Hong Kong, Switzerland, Indonesia and many more.

Clients include high profile customers such as Canadian Broadcasting Corporation, NTL, BBC World Service, Babock International (formerly VT Communications), Arquiva, Broadcast Australia, United Nations, RTHK to name a few!!

Downloads

• Davicom MAC range brochure in pdf format