TELSEC® ESB2/ESB2x Upgrade Kit

for Monitoring, Control & Building Management of Remote Sites


The TELSEC ESB2/ESB2x Upgrade kit is designed to upgrade an existing ESB or ESBx system without having to remove panels or rewire all of the monitoring and control points.

TELSEC ESB2/ESB2x Upgrade Kit Features

  • Provides an integrated surveillance solution to monitor and control all environmental and equipment alarming.
  • Performs all controlling, monitoring, and communication functions in a single product.
  • SNMP, embedded Web Server, with secure encrypted protocols.
  • Uses Quest's patented economizer control algorithm to dynamically adjust settings to optimize the use of outside air for cooling.
  • Operates with a standard control program or can be customized to meet your requirements.
  • Enables interrogation of remote sites from any alarm and/or maintenance center.
  • UL and CE listed. Mountable in customized UL approved Panel Enclosures.


  • Simple to install & program
  • Can be configured through a web browser or upload a config file
  • Real time view of your facility and critical equipment
  • Reduces visits to Remote Sites
  • Low cost solution for remote monitoring of your critical facilities
  • Eliminates downtime by acting as an Early Warning System

Part Numbers

TELSEC® ESB2/ESB2x Upgrade Kit: 151083

EXP Expansion Panel: 150775 requires External Power Supply
UIB Board: 130455
DOB Board: 130454
AOB Board: 130456
HVAC Controller: 150966-5


Part Number: 151083

Mounting: Board set replaces the ESB boards in the same wall mounted enclosure.

Inputs: 16 universal inputs expandable to 272 in 16 input increments, Analog (0-5 VDC or 0-20 mA) or dry contact closures (order part# 130455)

Outputs - Digital: 16 digital outputs expandable to 144 in 8 output increments, (order part# 130454)

Contact Rating: (16) Form A, 1 amp at 30 VDC, 0.3 amps at 60 VDC, 0.5 amps at 125 VAC, (order part# 130454) (8) Form C, 10 amps at 28 VDC, 8.5 amps at 120 VAC

Outputs - Analog Optional: 2 on-board, expandable to 66 in 4 analog output increments, 0-10 VDC or 0-20/4-20 mA (order part# 130456)

HVAC Control: 16 standalone HVAC Controllers can be networked to the system. Order part# 150966

Power: 24 VAC/20-60 VDC, current draw 0.5 amps at 24 VDC
Front Panel: Color Touch Screen LCD 4.3” diagonal with 24-bit TrueColor. WQVGA resolution (480 x 272)

Serial Network: Three RS485 ports

Options Supported: Quest expansion modules

Network Interface (option)
LAN: Ethernet 10/100BaseT with RJ45 connector

Protocols Supported: IPv6, IPv4, HTTP, HTTPS, RADIUS Password Authentication, NTP, SMTP (email), SSHv2, Telnet, SNMP v1, v2c and v3 for Gets, Sets and traps/informs

I/O Terminals: 2 piece pull-off terminals for all field wiring

Battery: Long life lithium: 10 year shelf life, 1.5 years under load

Temp/Humidity Sensor Accuracy: Temp: ±1°F (±0.5°C), Humidity: ±2% of range. Temperature & Humidity sensor (standard)

Ambient Operating Temp: -20 to 180°F (-29 to 82°C), 0-95% RH Non-condensing

Certification: UL, CE

Weight: 5 lb (2.3 kg)

Warranty: 1 year

For use under U.S. Patent No. U.S. 10,267,529 B2 when component is part of a patented combination

Specifications subject to change without notice.