Comnet FDC80TM1 User Manual

Download

INSTALLATION AND OPERATION MANUAL

FDC80 Series

8-CHANNEL SUPERVISED CONTACT CLOSURE

This manual serves the following ComNet Model Numbers:

FDC80TM1

FDC80RM1

FDC80NLRM1

FDC80TS1

FDC80RS1

FDC80NLRS1

FDC80T48 5

FDC80R485

FDC80NLR485

The FDC80 contact closure transmitter and receiver provide transmission of up to eight independent supervised contact closures over either one optical fiber or two wire RS-485 link. Microprocessor-based logic sends the contact information in packets that are ordered and encoded, ensuring extremely robust transmission. Packets that are garbled, packets out of sequence, and transmission bit errors will not cause random changes of state on the contact relays. The receiver unit is offered in both latching and non-latching relay configurations.

Multiple levels of supervision and receiver alarm control can be selected. See Figure 7 on Page 4 for switch settings.

Each module incorporates power and individual status indicating LED’s for monitoring confirmation of contact closure of each of the eight channels. See Figure 8 on Page 4 for an explanation of the LED indicators.

These units are interchangeable between stand-alone or card mount configurations. See Figure A on Page 7 for mounting instructions.

See Figures 1 – 11 for complete installation information, following the Application Note on Page 6.

INS_FDC80_REV–

12/29/11

PAGE 1

INSTALLATION AND OPERATION MANUAL FDC80

FIGURE 1 – FDC80 OPTICAL

MULTIMODE OR SINGLE MODE OPTICAL FIBER (Depending on Model)

BLACK BLACK WITH WHITE STRIPE

Power Supply: Surface Mount: 8–15 VDC @ 150mA Rack Mount: From Rack

NOTE: Remove Electrical Connector

for Rack Mount Units

FIGURE 2 – FDC80 TRANSMITTER FIGURE 3 – FDC80 RECEIVER

REAR PANEL REAR PANELFRONT PANEL FRONT PANEL

TECH SUPPORT: 1.888.678.9427

INS_FDC80_REV–

12/29/11

PAGE 2

INSTALLATION AND OPERATION MANUAL FDC80

FIGURE 4 – FDC80 RS-485

RS485 2 Wire

BLACK BLACK WITH WHITE STRIPE

Power Supply: Surface Mount: 8–15 VDC @ 150mA Rack Mount: From Rack

NOTE: Remove Electrical Connector

for Rack Mount Units

FIGURE 5 – FDC80 RS-485 TRANSMITTER FIGURE 6 – FDC80 RS-485 RECEIVER

REAR PANEL REAR PANELFRONT PANEL FRONT PANEL

TECH SUPPORT: 1.888.678.9427

INS_FDC80_REV–

12/29/11

PAGE 3

INSTALLATION AND OPERATION MANUAL FDC80

FIGURE 7 – SWITCH SETTINGS

The switch is located on the front panel of each unit.

Transmitter 1 - Series Supervision 2 - Parallel Supervision

Receiver 1 - Fiber Alarm 2 - Contact Fault Alarm

TX: The transmitter switch selects the supervision method, and this information is automatically transmitted to the receiver module.

There are four levels of supervision. NONE: S1-OFF, S2-OFF. No supervision is active. The contact will show as closed when the inputs are shorted, and open when the input are open. The associated LED will be either GREEN (closed) or OFF (open).

Series: S1-ON, S2-OFF. Series termination is when a 1K resistor is connected in series with the relay input. In this mode, shorts across the contact inputs can be detected. When the relay is closed normally, the LED indicator will be GREEN, when open it will be OFF, when shorted, the LED will ﬂash RED slow.

Parallel: S1-OFF, S2-ON. Parallel termination is when a 1K resistor is connected in parallel, across the contact input. In this mode, cut wires can be detected. When the relay is closed normally, the LED indicator will be GREEN, when open it will be OFF, and when cut, it will ﬂash RED fast.

Full Supervision: S1-ON, S2-ON. Full Supervision is when a 1K resistor is connected in series with the contact input, and a 1K resistor is connected in parallel across the contact input. It can detect cuts (fast red ﬂash), shorts (slow red ﬂash) as well as normal contact closures (GREEN) or opens (OFF).

RX: The switch on the Receiver module is used to add indications to the Alarm relay output. The Non-Latching ALARM output is

released when a power fault has occurred. Additionally, Fiber Loss and Contact Faults can induce the Alarm to trigger as follows:

S1-ON: Add Fiber Loss to the Alarm output

S2-ON: Add contact fault (any channel) to the alarm output (supervisory modes only)

If any contact is in fault (either Cut or Shorted) and S2 is ON, the Alarm will be triggered.

FIGURE 8 – LED INDICATORS

LINK/POWER CHANNEL (1 – 8)

GREEN Link Present Contact Closed

RED Link Loss Slow Flash: Shorted

Fast Flash: Cut

OFF Unit powered down Contact Open

INS_FDC80_REV–

TECH SUPPORT: 1.888.678.9427

12/29/11

PAGE 4

INSTALLATION AND OPERATION MANUAL FDC80

FIGURE 9 – CONTACT INPUT CIRCUIT (Typ. 8)

INTERNAL

1K Series*

Parallel*

FIGURE 10 – RELAY OUTPUTS

* Optional external resistors

(provided) are required for supervision. Place close to the switch for optimal results.

FIGURE 11 – RS-485 CONTACTS

In RS-485 products (FDC80(T,R)485), the contacts can be transmitted over a pair of wire instead of ﬁber. Since communication is simplex only, just two wires are needed: A and B. Connect as shown:

Input open

CONTACTSALARM

Input closed

Fault

No fault

TECH SUPPORT: 1.888.678.9427

100 m (300 ft)

Max

NC C NO

INS_FDC80_REV–

12/29/11

PAGE 5

INSTALLATION AND OPERATION MANUAL FDC80

APPLICATION NOTE

LATCHING RELAYS:

Latching relays are typically used when the application must insure that the contact outputs will not change state when either power is lost or the ﬁber is broken. This is a common requirement at high security gate entrance locations, where the gates must not open under any abnormal operating condition. In other words, they must open ONLY when commanded via the contact input state. Alarm conditions detected by the wire supervision circuits will therefore leave the relays in their current state.

NON-LATCHING RELAYS:

Non-latching relays are utilized if the contact outputs must switch to a known state when the power is lost or the ﬁber is broken. This is a common requirement in applications that require a known failsafe state during abnormal operating conditions. Alarm conditions detected by the wire supervision circuits will therefore leave the relays in their default failsafe state.

TECH SUPPORT: 1.888.678.9427

INS_FDC80_REV–

12/29/11

PAGE 6

MECHANICAL INSTALLATION INSTRUCTIONS

INSTALLATION CONSIDERATIONS

This fiber-optic link is supplied as a Standalone/Rack module. Units should be installed in dry locations protected from extremes of temperature and humidity.

C1-US, C1-EU, C1-AU OR C1-CH CARD CAGE RACKS

CAUTION: Although the units are hot-swappable and may be installed

without turning power off to the rack, ComNet recommends that the power supply be turned off and that the rack power supply is disconnected from any power source.

1. Make sure that the card is oriented right side up, and slide it into the card guides in the rack until the edge connector at the back of the card seats in the corresponding slot in the rack’s connector panel. Seating may require thumb pressure on the top and bottom of the card’s front panel.

CAUTION: Take care not to press on any of the LEDs.

2. Tighten the two thumb screws on the card until the front panel of the card is seated against the front of the rack.

WARNING: Unit is to be used with a Listed Class 2 power supply.

FIGURE A

Dimensions are for a standard ComNet™ module

.156 [3.96 mm]

.313 [7.95 mm]

IMPORTANT SAFEGUARDS: A) Elevated Operating Ambient - If installed in a closed or multi-unit rack

assembly, the operating ambient temperature of the rack environment may be greater than room ambient. Therefore, consideration should be given to installing the equipment in an environment compatible with the maximum ambient temperature (Tma) specified by the manufacturer.

B) Reduced Air Flow - Installation of the equipment in a rack should be such

that the amount of air flow required for safe operation of the equipment is not compromised.

One Slot Module

(Transmitter)

Two Slot Module

(Receiver)

INS_FDC80_REV–

12/29/11

Comnet FDC80TM1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual