With such a vast selection of CCTV products available from Far Eastern sources, RSS spent a considerable amount of time surveying possible suppliers in order to make sure that they found a supplier that they could work consistently with and whose CCTV products met the same high standards as those of the popular RSS Door Entry and Access products. They are now in a position to offer a comprehensive range of good quality CCTV products at competitive prices. In addition to cameras ( including IP cameras) and DVRs, control software and other accessories are also available. One of these is a TV Modulator that enables door entry and other video signals to be fed into the CATV systems of large apartment blocks.
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Raytel Security Systems have completely redesigned their popular K50 keypad access controller. The new controller is just as robust as the previous model but can now operate in either standalone or networked mode via an RS485 port to a PC host. The event log can hold 1200 events and the memory can hold up to 1024 codes. The K50 has both a built-in door relay and an alarm relay. A duress code can be programmed into the unit, which also has a tamper switch and a real time clock.

The base unit, the K50i is protected to IP65. It can be mounted on a stainless steel front plate for flush-mounting either into a standard double gang electrical back box or into a bespoke stainless steel back box for surface mounting. If customers simply want to screw the K50i directly to a surface, it comes with its own clip-on plastic cover.

If anti-pass back is required, a slave Wiegand keypad, AR-721KBX can be used in conjunction with the K50. Alternatively, this extremely versatile unit can be used as a low cost proximity controller by connecting it to a Wiegand proximity reader.

The AVM-138 is particularly suitable for various functions on Communal Access TV systems.

1) Door Entry Systems
When used in conjunction with an Audio Door Entry system and a CCTV camera, the modulator can be used to give a video image of the caller on one channel of an apartment's TV as part of a CATV system.

2) Hotels, Schools, Public Buildings etc.
This modulator can be used with Satellite Receivers, DVDs, VCRs and Digital TV sources to create an individual CATV system.

The range covered by each AVM-138 is as follows:-

NTSC CH58-CH138 (427.25 - 877.25 MHz.)
PAL-BG E21-E69 (471.25 - 855.25 MHz.)
PAL-I E21-E69 (471.25 - 855.25MHz.)
PAL-DK DS13-DS57 (427.25 - 863.25 MHz.)

Specification:-
Model : AVM-138.
Display Mode : Digital LED Channel Display.
Video Input : 1.0Vp-p for 87.5% modulation.
Audio Input : Pre-emphasis 75us.
RF output Strength : 100 i0 5 dbuv.
Connectors : One audio input/one video input (RCA connector), one RF out (standard "F" female connector).
Power requirements : 9VDC - 12VDC.
Dimensions : 115 L x 76 W x 31 H (mm).
Weight : 171g.

The New Controller, AR-727HB-RAY can be used either in standalone or network mode. The controller has two RS485 ports, each of which can be connected to an RS485 compatible proximity reader for card or token. The use of an RS485 connection means that the cable run between reader and controller can be as much as 1000 metres. The controller also has a built-in reader and LCD screen for programming purposes.
Suitable readers for this controller are the AR-737H and the new AR-737HB-RAY, which is also available in a vandal resistant stainles steel case for surface or flush mounting. If anti-passback control is required, the two readers would be used for in/out control of a single door.
The controller is also available in a lockable metal case complete with 3-amp power supply (EAR-727HB-RAY).
In network mode, up to 254 controllers can be connected to a single host PC.