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Operator Manual for TACT TA-4800 in NSW National Parks & Wildlife Service User Mode G/00123B Issue 1 Page 17
CONNECTIONS
RADIO (RJ45)
The radio interface connection
PIN DESCRIPTION
1 PTT
Common
2 PTT
Normally
Open
3
MAP 27 (Digital) Out
4
COS Indication from Radio
5
MAP 27 (Digital) In
6
Signal Ground (Return) (OV)
7
Audio Out from TACT to Radio (Tx)
8
Audio In to TACT from Radio (Rx)
TELEPHONE
LINE 1 (RJ12)
PSTN line or PABX extension connection
PIN DESCRIPTION
1
2
3 Ring
(Lb)
4 Tip
(La)
5
6
LINE 2 (RJ12)
An optional second PSTN or PABX Line connection
(sometimes an internal PABX extension)
PIN DESCRIPTION
1
2
3 Ring
(Lb)
4 Tip
(La)
5
6