bell
issimo
2-72 Way Video Entry System
PD-098 Issue 4B
Installation and Operating Manual
Page 21 of 44
Address Offset SW7
– Build 7 onwards
SW7 is an 8 bit switch that is used to increase the addressing range. For each bit that is
switched ON add the corresponding value to the amount set by SW6. This allows flat
addresses up to 3210 to be set (6410 or higher with the jumper below).
Bit Offset
1
+1
2
+2
3
+50
4 +100
5 +200
6 +400
7 +800
8 +1600
Extended Addressing Jumper PROG pins 2-3
– Build 7
This jumper adds +3200 to the phone 1 address set using SW6 and SW7. Phone
addresses up to 6410 (Phone 1 output) can be set. Custom versions will show the custom
offset on the build label.
The use of this jumper precludes the use of Odd/Even addressing by PROG pins 1-2, if
both are required contact Bell System Technical. The jumper is stored on pins 4-5.
Custom Alternate Addressing
Special versions of the BSC4 can be ordered to allow addressing above 6413. For
instance by making the jumper add 5000 the BSC4 would be able to address from 1 to
3210 and 5001 to 8210 (Phone 1 output).
Extended Addressing Jumper PROG pins 2-3
– Build 7A
This jumper adds +nn00 to the phone 1 address set using SW6 and SW7. The value
+nn00 is shown on the build label. The jumper is stored on pins 4-5.
The use of this jumper precludes the use of Odd/Even addressing by PROG pins 1-2, if
both are required contact Bell System Technical. The jumper is stored on pins 4-5.
Odd/Even Addressing Jumper PROG pins 1-2
– Builds 5C, 6C and 7 onwards
This jumper alters the addressing of Phone outputs 2, 3 and 4 such that they all become
either odd or even numbers. So if the address of phone 1 is 12 say the other outputs
become 14, 16 and 18. If the address were 31 then the other outputs are 33, 35 and 37.
The use of this jumper precludes the use of extended addressing by PROG pins 2-3, if
both are required contact Bell System Technical. The jumper is stored on pins 4-5.
SW7
(QWERTY
UI)
OFF ↔ ON
Each bit on SW7 adds the
corresponding amount to
the address set by SW6.
Do not set a total value
above 9995
