See how this modular product fits in a frame:

Features

  • Extends up to 3 or 8 independent channels of intercom communication over a single fiber optic link
  • Configurable interface to:
    • RTS-Telex Matrix: 4-Wire Audio, RS-485 Data, GPIO
    • ClearCom Matrix: 4-Wire Audio, RS-422 Data, GPIO
    • RTS-Telex Party-Line: 2-Wire Audio, GPIO
    • ClearCom Party-line: 2-Wire Audio, GPIO
  • NOTE: Does not perform conversion between 2-Wire and 4-Wire systems
  • Independent channels can simultaneously accommodate different intercom types
  • User-friendly selection of intercom interfaces via programmed profiles
  • All configurations and adjustments are controllable through the card-edge user interface or remotely via SNMP and VistaLINK®
  • Unique self-calibration of party-line audio null levels
  • Selectable termination, and failsafe bias settings for RS-422/485data inputs
  • Provides 2 general-purpose inputs (GPI's), and 2 general purpose outputs (GPO's)
  • Comprehensive signal and card status monitoring via four-digit card-edge display, or VistaLINK®
  • Optical output wavelengths of 1310nm, 1550nm, and up to sixteen CWDM wavelengths (ITU-T G.694.2 compliant)
  • DWDM wavelengths (ITU-T G.694.1 compliant) also available
  • Compatible with single-mode and multi-mode fiber optic cable (dual fiber version)
  • Fully hot swappable from front of frame
  • Occupies two card slots and can be housed in the 1RU 7801FR frame which holds up to four single or two dual slot modules, the 3RU 7800FR frame which has a 15 slot capacity, the portable 3RU 350FR frame which has a 7 slot capacity, or a standalone enclosure which holds a single module.
  • VistaLINK® capable for remote monitoring via SNMP (using VistaLINK® PRO) when installed in 7800FR frame with a 7800FC VistaLINK® Frame Controller

Specifications

Analog Audio Input/Output

Balanced/Matrix Type Audio
Number of Signals
7707IT-3 3 inputs, 3 outputs
7707IT-8 8 inputs, 8 outputs
Type Analog Audio, Balanced
Industry Standards ClearCom, RTS-Telex
Connector Multi-pin removable terminal block
Input Impedance > 10kΩ
Output Impedance 66Ω
Signal Resolution 24 Bit
Sampling Rate 52.7kHz
Frequency Response 20Hz to 20kHz
Gain Flatness ±2dB
Maximum Input Level +20dBu
Maximum Output Level
Into 10kΩ +20dBu
Into 600Ω +19dBu
SNR > 90dB
THD < 0.01%
Crosstalk < -80dB
Controllable Gain -10dB to +10dB
Unbalanced/Party-Line Type Audio
Number of Signals
7707IT-3 3
7707IT-8 8
Type Analog Audio, Full-duplex, Unbalanced
Industry Standards ClearCom, RTS-Telex
Connector Multi-pin removable terminal block
Signal Coupling AC coupled (accommodates 30V "wet" inputs)
Bridging Impedance > 10kΩ
Signal Resolution 24 Bit
Sampling Rate 52.7kHz
Sidetone Null > 25dB
Sidetone Null Range 100Ω to 300Ω load
Frequency Response 120Hz to 20kHz
Gain Flatness ±2dB
Maximum Input Level +5dBu
Maximum Output Level +5dBu (into 200Ω load)
SNR > 75dB
THD < 0.1%
Crosstalk < -60dB
Controllable Gain -5dB to +5dB (into 200Ω load)
Receive Signaling 4V DC min (ClearCom), 20kHz ±500Hz (RTS)
Send Signaling 11V DC min (ClearCom), 20kHz ±100Hz (RTS)

RS-422/485 Serial Data

Number of Signals
7707IT-3 3
7707IT-8 8
Connector Multi-pin removable terminal block
Type RS-485 or RS-422 (selectable)
Input Termination 120Ω or Open (selectable)
Input Failsafe Bias 200mV (3.3mA into 60Ω) or None (selectable)
Bit Rate
RS-485 Compatible with all Telex RS485 rates
RS-422 460kb/s

Optical Input / Output

Number of Connections 1 (single fiber version) or 2 (-F2 dual fiber version)
Connector Female SC/PC or FC/PC
Input Wavelength 1270nm to 1610nm
Maximum Input Power 0dBm
Output Wavelength
Standard 1310nm, 1550nm (nominal)
CWDM 1270nm to 1610nm (ITU-T G.694.2 compliant)
DWDM C-Band (ITU-T G.694.1 compliant)
Output Power
1310nm FP -7dBm ±1dBm
1310nm (-W version) -1dBm ±1dBm
1550nm, CDWM (DFB) 0dBm ±1dBm
DWDM (DFB) +7dBm ±1dBm
Optical Sensitivity
WDM (-W version) -26dBm
Standard -28dBm

General Purpose Inputs

Type Opto-isolated, Active low
Number of Inputs 2
Connector Multi-pin removable terminal block
Voltage
Safe Voltage Range -20V to +10V
Off Condition (min) > +3.5V
On Condition (max) < +2.5V (active low)
Current
Minimum 1mA
Maximum 10mA (internally limited)

General Purpose Outputs

Type Dry contact relay closure, normally open
Number of Outputs 2
Connector Multi-pin removable terminal block
Minimum Current 100mA

Electrical

Voltage +12V DC typical (nominal frame voltage)
Maximum Power
7707IT-3 7 Watts (Non-DWDM) or 9 Watts (DWDM)
7707IT-8 18 Watts (Non-DWDM) or 20 Watts (DWDM)

Physical

Number of Slots 2

Compliance

Laser Safety Class 1 laser product, complies with 24CFR 1040.10 and 1040.11, IEC 60825-1
EMI/RFI Complies with FCC Part 15, Class A, EU EMC Directive

Ordering Information

7707IT13M‑3‑W Three Channel Intercom Fiber Transceiver, Single Fiber, WDM, 1310nm FP Tx, Rx on 1550nm
7707IT15‑3‑W Three Channel Intercom Fiber Transceiver, Single Fiber, WDM, 1550nm DFB Tx, Rx on 1310nm
7707IT13‑3‑F2 Three Channel Intercom Fiber Transceiver, Dual Fiber, 1310nm FP Tx and Rx
7707IT13M‑8‑W Eight Channel Intercom Fiber Transceiver, Single Fiber, WDM, 1310nm FP Tx, Rx on 1550nm
7707IT15‑8‑W Eight Channel Intercom Fiber Transceiver, Single Fiber, WDM, 1550nm DFB Tx, Rx on 1310nm
7707IT13‑8‑F2 Eight Channel Intercom Fiber Transceiver, Dual Fiber, 1310nm FP Tx and Rx
CWDM (Ordering Information)
7707ITxx‑3‑F2 Three Channel Intercom Fiber Transceiver, Dual Fiber, CWDM DFB laser
7707ITxx‑8‑F2 Eight Channel Intercom Fiber Transceiver, Dual Fiber, CWDM DFB laser
DWDM (Ordering Information)
7707ITDxxx‑3‑F2 Three Channel Intercom Fiber Transceiver, Dual Fiber, DWDM DFB laser (Contact Factory for Wavelength Availability)
7707ITDxxx‑8‑F2 Eight Channel Intercom Fiber Transceiver, Dual Fiber, DWDM DFB laser (Contact Factory for Wavelength Availability)

Ordering Options

Notes Rear plate and fiber connector must be specified at time of order - eg: [model]+SC+3RU
Connector Suffix
+SC SC/PC
+FC FC/PC
Rear Plate Suffix
+1RU 1RU rear plate for use with 7701FR Multiframe
+SA Standalone Enclosure Rear Plate
+3RU 3RU rear plate for use with 350FR, 7700FR-C or 7800FR Multiframes

Enclosures

350FR Portable Multiframe which holds 7 single slot modules
7700FR-C 3RU Multiframe which holds 15 single slot modules
7800FR 3RU Multiframe which holds 15 single slot modules
7701FR 1RU Multiframe which holds 3 single slot modules
S7701FR 7700 Series Standalone Enclosure