Specifications

2.19.1 Setting The Caller ID Parameter Switches
The Caller ID device has two banks of parameter switches located on its front panel. You must
set the switches of the S2 switch band in a certain manner to enable Caller ID operation.
Switches S2–1 through S2–5 set the baud rate, data bits, and parity, while switches S2–6, S2–7,
and S2–8 set the unit address for each device.
SWITCH S2–1 SWITCH S2–2 BAUD RATE
OFF OFF 1200
ON OFF 2400
OFF ON 4800
ON ON 9600*
* Set ON, ON (9600 baud) for DSU operation.
SWITCH S2–3 DATA BITS
OFF 7
ON 8*
*Set ON (8 data bits) for DSU operation.
SWITCH S2–4 SWITCH S2–5 PARITY
OFF OFF NO PARITY*
ON OFF ODD
OFF ON EVEN
ON ON EVEN
* Set OFF, OFF (no parity) for DSU operation.
NOTE: If you are combining units (more than 8 lines are used), turn all switches in Dip
Switch S1 OFF except for switch 7. S1 switch 7 must be ON when combining units.
SWITCH S2–6 SWITCH S2–7 SWITCH S2–8 DEVICE
OFF OFF OFF 1
ON OFF OFF 2
OFF ON OFF 3
Digital Telephone System IMI66–107
2 – 74 Installing The DSU