Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL VF-5A RFL Electronics Inc.
June 28, 2005 2 (973)
334-3100
SPECIFICATIONS
As of the date this Instruction Data sheet was published, the following specifications apply to the RFL
VF-5A module. Because all RFL products undergo constant refinement and improvement, these
specifications are subject to change without notice.
Configuration: Two independent voice-frequency channels.
Frequency Response: 300 to 3000 Hz, +0.15 dB.
Input Level: -19.0 dBm to +5.0 dBm (-16dBm nominal), adjustable in 0.1-dB steps.
Output Level: -14.0 dBm to +10.0 dBm (+7dBm nominal), adjustable in 0.1-dB steps.
Input Impedance: 600Ω
Output Impedance: 600Ω
Idle Channel Noise: Less Than 23 dBrnc0.
Signal-To-Distortion (1004-Hz Input, 0 to -30 dBm): Greater Than 33 dB C Message.
Signaling: Selectable, E&M Type I, II, or II, or Transmission Only (TO) Mode
M Lead Input:
Input Impedance: Greater than 20K ohms to ground
Busy: -20 to -60 Volts
Idle: Open or Ground
E Lead Output:
Busy: Less than 50 ohms to ground
Idle: Open
Time Slots Required:
One-Channel Operation: One selectable time slot.
Two-Channel Operation: Two adjacent selectable time slots.
Remote Interface: Compatible with SCL remote command language; allows module configuration
and status access.
Operating Temperature: -20
o
C to +55
o
C (-4
o
F to +131
o
F).
Relative Humidity: 0 to 90 percent, non-condensing.
Input Power: 1.0 watt nominal
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