Relays - Mitel SX-200 Practices

Universal Card
Table 7-l DTMF Codes
DTMF Diglt Data Output
D3 D2 Dl DO
1 1 1 0
2 1 1 0 I
3 1 1 0 0
5 1 0 1 0
6 1 0 0 1
I 7 I 1 0 0 0 I
6 0 1 1 1
9 0 1 1 0
0 0 1 0 1
*
0 1 0 0
# 0 0 1 1
Relays
There are two general purpose relays. When each relay closes, it connects a tip and
ring pair together, as follows:
I
Relay
I
Connection
I
RLYl
T2 to R2
RLY2
T3 to R3
The relay contacts are rated as follows:
maximum switching voltage: 90 V
maximum cartying current: 0.5 A
Note: This relay contact may be connected only to a secondary circuit that has no direct
connection to a primaty circuit, and receives its power from a transformer, convener, or
equivalent isolation device situated within the equipment.
9109-096-l 25-NA Issue 1
Revision 0
125 7-5