CES SUPPORT 407-679-9440
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MAN71© CES 2010
External COR Polarity (41#)
The COR input can be programmed for active high or active low polarity. On active high, the input to the 4700VP
should be in the low condition (zero volts) with no carrier present and change to a high condition (normally 5vdc)
with carrier. This voltage swing must be greater than 2.5V DC. In the active low polarity, the input must be 5V DC
with no carrier and 0V DC with carrier, the voltage swing must be greater than 2.5V DC. This logic signal is
normally connected to squelch detector, CTCSS/DCS decoder output or from a point within the receiver which
changes states when carrier is present.
0 = active low
1 = active high
Example: To program COR for active high, enter the following sequence: 41# 1#
CTCSS Polarity Logic Input (42#)
The CTCSS logic input can be used as a mobile signal or to add security to the interconnect. This logic input is user
programmable for active high or active low polarity and should be connected to the output of a CTCSS/DCS tone
decoder. This logic signal should only change when the proper tone has been detected by the CTCSS/DCS tone
decoder. If the output voltage of the decoder is normally low and goes high with the proper tone, program the
4700VP for active high operation. If the output of the CTCSS tone decoder is normally high and goes low with the
proper tone, program the 4700VP for active low operation.
0 = active low
1 = active high
Example: To program the CTCSS polarity for active high, enter the following sequence: 42# 1#
Gate COR with CTCSS (43#)
This code when enabled will look for a logic change in both the COR and CTCSS inputs. If only one of these signals
is used, then this code must be turned off.
0 = no
1 = yes
Example: To enable this feature enter the following sequence: 43# 1#
Accept Pound Only (#) for Disconnect (44#)
The 4700VP can be programmed for global disconnect (# only) or a multiple digit disconnect code.
0 = no
1 = yes
Example: To program the 4700VP for a single digit (#) to disconnect, when a multiple digit connect code is being
used, enter the following sequence: 44# 1#.
Note:
If no multi digit connect code is programmed, the 4700VP will automatically use the global disconnect.
DTMF Regeneration (45#)
The 4700VP may be programmed for regenerated DTMF or non regenerated DTMF. In the regeneration mode, the
4700VP will receive DTMF from the mobile and regenerate them at a constant level into the phone line. This feature
is useful when the receive signal to the receiver is weak or inconsistent. Regeneration will be cease after less than 7
digits are dialed and COR goes inactive for 4 seconds or 7 or more digits are dialed and COR goes inactive. The
regeneration mode can be re-entered using with the following sequence: activate 4700VP COR, press the star (*)
key, deactivate 4700VP COR. In the non regenerated mode, DTMF is sent to the phone line as it is received by the
4700VP.
0 = non regenerated
1 = regenerated
Example : To program the 4700VP for non regenerated DTMF enter the following sequence: 45# 0#
