Mercury SR-10K OVERVIEW, continued, Cipher Codes, User Levels, Operating Modes, Multi-ReaderSites

OVERVIEW, continued

Cipher Codes

The SR-10K supports up to 10 cipher codes. Each code is one to six digits in length - shorter codes are terminated with the '#' key. Cipher codes, like cards, are assigned a User Level, and like cards, may cause different output relay action depending on the direction of the code entry. See the next two sections for more details.

User Levels

Each card and cipher code is assigned a User Level from 1 to 3. The User Level, along with the selected Operating Mode, determines the result of the card or cipher entry. For example, Level 1 users cannot activate the door relay in some modes unless an input sees a closed contact.

Operating Modes

The versatility of the SR-10K is based on its ability to configure the function of its inputs and relays to suit different applications.

The action performed on the door strike relay, for example, depends on the direction of the card (or cipher code) entry, on the User Level, and possibly on the state of one of the inputs. In addition, the color of the upper reader LED may display the status of an exter- nal device connected to an input, such as an alarm panel's armed/disarmed indicator.

An Operating Mode is a collection of these functions intended for a specific application. The Operating Modes are described in detail later in this document.

Multi-Reader Sites

Up to 16 SR-10K's may be linked via a '2-wire' cable. Configuration, card, and cipher code database settings can all be made at just one reader and copied to other SR- 10K's using simple keypad commands. Modifications can still be made at each reader in cases, for example, where the databases are not identical at every reader.

The data link uses the RS-485 interface standard, allowing the total cable run to extend up to 4,000 feet. The devices must be connected in a 'daisy-chain' configuration. Install the RS-485 termination jumper, J4, on the first and last units only.

This unique feature bridges the gap between complex computer-based integrated ac- cess systems and the simpler, individually programmed stand-alone access control- lers.

Additional Information

1. The LED's on the interface board are defined as:

A = Heartbeat and reader status: Fast flash: normal. Slow flash: Reader communication lost.

B = Flashes when there is activity on the RS-485 communication bus. 2. Jumper J3: not used.

Mercury Security Corporation, © 2005 SR-10K Doc. 10107-0007 Rev 1.04 Page 4