Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL VF-5C RFL Electronics Inc.
October 8, 2012 30 (973)
334-3100
ALERTS AND ALARMS
The RFL VF-5C reports no module-level ALERT or ALARM signals to the shelf Common Module.
VF-5C COMPATIBILITY WITH PREVIOUS RFL VF-5 MODULES
The RFL VF-5C module is compatible with the VF-5, VF-5A and VF-5AE modules, however , many
new features have been added to the VF-5C. The key differences and incompatibilities are as follows:
1. On the VF-5C, all settings other than signaling type are remotely programmable. Previous
designs were much more limited.
2. The VF-5C supports type V signaling, which was previously unsupported.
3. An addressing feature has been added to the VF-5C. The addressing mode is not supported in
older models.
4. Individual time slot and bus direction selection for each channel has been added. The previous
designs require consecutive time slot selection, and the same bus direction.
5. The VF-5C has three loopback modes: local, remote, and 2713 Hz detect. These modes are not
available with the previous designs, but they will function properly on a VF-5C when connected
to one of these previous designs.
6. FXO/FXS modes are now switch selectable on every VF-5C. In the past this was only available
with a custom modification.
7. A 1-kHz test tone can be injected into the transmit and receive paths to the VF-5C. This is a new
feature and does not affect the functionality of the earlier designs.
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