Standard Reply hardware overview

Note: Standard Reply is a discontinued model

The standard Reply Wireless Response System consists of the following items:

1. Wireless Keypads: Model CRS1200 is a calculator-style radio frequency device with a numeric button panel on the top surface. Keypads are given to each participant in the group. They are used to respond to questions presented during the meeting. Each Keypad is powered by an internal 9-volt battery and has no external wires or electrical connections.

2. Base Station: Model CRS930 processes responses of up to 250 keypads on a single radio channel. There are 8 radio channels available to support a maximum of 2,000 keypads per room.

Base Station Carrycase, Model CRS899B-32 - High impact ABS shell, die cut foam insert, and locking clasps. Holds Base Station, 32 keypads, antennas, serial cable, and power supply.

Lockable Keypad Carrycase, Model CRS899K - High impact ABS shell, die cut foam insert, and locking clasps. Holds 50 keypads for security and shipping protection.

Auditorium/Hall Antenna Kit, Model CRSXANT20 - Consists of a pair of special dipole antennas with mounting slots. Replaces standard whip antennas to increase Base Station reception. Includes coaxial cable and connectors to attach antennas to the Base Station. This type of antenna system is recommended for large audiences in large areas.

The user of the system provides a personal computer or notebook and any desired projection device. Any personal computer with an available serial connection can potentially be used with the Reply System.

The Standard Reply uses the latest in wireless technology to turn any meeting into a dynamic interactive experience for each participant without having to deal with a nightmare of cables and connectors.

Fleetwood is unique in the marketplace with its patented system utilizing two separate radio frequencies to provide a two-way link with the keypads. This design ensures that no responses are missed by requiring a keypad to retransmit the user’s response until it is properly received by the Base Station. The design also allows the system to refuse to acknowledge any invalid entries. This is clearly superior to other technologies using one-way radio or infrared, which do not provide acknowledgment to the keypad when its entry is received and do not have any way of rejecting invalid entries.

The Base Station is the control center for the system and operates according to commands issued by the application software. Each Base Station can process responses from up to 250 keypads.

A radio frequency with an assigned channel number is used by the Base Station to address each individual keypad. This frequency is modulated by the Base Station microprocessor with a serial digital address signal that transmits continuously whenever the Base Station is turned on.

A different radio frequency, but with the same channel number, is used by the keypad to send response information to the Base Station. When a key is pressed on the keypad, this transmitter is automatically activated when addressed by the base transmitter.

Channel numbers are used only to denote the pair of operational frequencies as used by the Base Station and keypad unit.

How it works

The keypads are rapidly and continually interrogated by the Base Station 'in sequence' to securely process responses. System timing -- the interrogation cycle -- is adjustable from 0.5-2.5 seconds depending on group size. Keypads transmit their response information for a duration of 10 milliseconds (1/100th of a second) after receiving their address. Once the Base Station acknowledges a keypad's response information, the keypad turns off to conserve battery life.

Change/Check Keypad Channel Number

To change the Channel Number, simultaneously hold the “Clear” key and press key's “9” “7” “3”. Then release the “Clear” key. The current Channel Number will flash on the LED. The user can now enter any valid 3 digit Channel Number (002, 003, 004, 006, 007, 008) or press the “Clear” key to exit the Channel Change Mode. While in the Channel Change Mode, use the “0/10” key when you want to enter a “0”. Up to four seconds is allowed to enter each digit. After this interval, the keypad will also shut down. The keypad will shut down after the third digit is entered.

To check Channel Number, follow the same procedure as to change Channel Number, then press “Clear” key when complete.

Keypad Option Commands

Entering option commands is identical to entering a new Channel Number. All option commands start with the digit “9”. See Table 1 for the list of available options.

Option Commands (* = default)

Extract from Reply manuals

Reply® is a registered trademark of Fleetwood Group, Inc.

©Copyright 2005 Fleetwood Group, Inc.,