Instruction manual

HARDWARE DESCRIPTION
System Resource Circuit Packs
● TN748B and TN748C Tone Detector
Provides four touch-tone receivers; the system can have a maximum of two TN748B
or TN748CS, depending on the number of stations and the conditions in Table 4-C.
One TN748B or TN748C CP must be used in addition to the ZTN131 Service Circuit
in accordance with Table 4-C.
Table 4-C.
Tone Detector Requirements
Number of Tone Detector (TN748B or TN748C) CPs
Traffic
(Calls/Hr.)
No Account
Codes Used and
no Voice Message
System (VMS)
Automated
Attendant
or VMS
Automated
Attendant
and VMS
110 0
0
1
180
0
1 1
350
0
1 2
420
1 1
2
610
1 2 2
710
1 2
Unsupported
1100
1
Unsupported Unsupported
1400
2 Unsupported Unsupported
● TN758 Pooled Modem
Provides two integrated 212-modem compatible conversion resources for switched
connections between analog endpoints (modems), or a digital endpoint and an analog
endpoint. A maximum of two TN758s (four conversion resources) is permitted in
each cabinet.
4-12