Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
RFL VF-15C RFL Electronics Inc.
August 7, 2012 10 (973) 334-3100
Table 1. Controls and indicators, RFL VF-15C Foreign Exchange Voice Module
Item Name/Description Function Setting
1 DIP switch SW1 SW1-1 Sets chan 1 for loop start UP: Not used
DOWN: Loop Start
(SW1-2 Sets chan 1 TX circuit audio level
thru -8)
See Table 3
2 DIP switch SW2 SW2-1 Enables/Disables chan 1 signaling delay * UP: Signaling delay disabled
DOWN: Signaling delay enabled
(SW2-2 Sets chan 1 RX circuit audio level
thru -8)
See Table 3
3 DIP switch SW3 SW3-1 Sets chan 2 for loop start UP: Not used
DOWN: Loop Start
(SW3-2 Sets chan 2 TX circuit audio level
thru -8)
See Table 3
4 DIP switch SW4 SW4-1 Enables/Disables chan 2 signaling delay * UP: Signaling delay disabled
DOWN: Signaling delay enabled
(SW4-2 Sets chan 2 RX circuit audio level
thru -8)
See Table 3
5 DIP Switch SW9 (SW9-1 Selects the SCB address See Table 2
thru -6)
SW9-7 Selects Normal or Enhanced mode UP: Enhanced Mode
DOWN: Normal Mode
SW9-8 Enables or Disables Channel 2 UP: Channel 2 Enabled
DOWN: Channel 2 Disabled
6 DIP Switch SW10 (SW10-1 Time Slot Select
thru -5)
See Table 4
SW10-6 Selects bus transmit direction UP: “B” direction (D&I only)
DOWN: “A” direction (required
for terminal multiplexer)
SW10-7 Selects Local or Remote control UP: Local control
(using switches)
DOWN: Remote Control
(over SCB)
SW10-8 Turns module service ON or OFF UP: Service ON
(over-ridden if
improperly configured)
DOWN: Service OFF
7 LED Indicator DS1 Lights when the line connected to Chan 1 is ringing
NA
8 LED Indicator DS2 Lights when the line connected to Chan 1 is busy
(in use)
NA
9 LED Indicator DS3 Lights when the line connected to Chan 2 is ringing
NA
10 LED Indicator DS4 Lights when the line connected to Chan 2 is busy
(in use)
NA
11 LED Indicator DS5 Lights when the modules service is enabled
NA
* SW2-1 enables Signaling Delay for both channel 1 and channel 2 i
n an E1 system configured for normal mode.
SW4-1 has no effect in E1 normal mode.
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