Cabletron Systems 1800 - Manual (Page 403)

Voice Configuration Ref erence Informat ion C-11
Follow this step-by-step check list when connecting the SmartSwitch 1800 in an E&M
application:
1. Determine the required E&M signaling convention used by the PBX tie line port:
Type I, II, III, IV, or V.
2. Set Switch 2 on the front of the SmartSwitch (see Figure 13-6 on page 13-11) for
the proper signaling type. (See Table 13-5 on page 13-12.)
3. Connect the voice pair(s) and signaling wires as outlined under "E&M Wiring"
on page C-13.
4. Finally, configure each SmartSwitch 1800 port parameter to reflect the hardware
configuration.
AC15 Connections
AC15 is a four-wire signaling system (two-wire transmit/two-wire receive) used by
PBXs to communicate with each other and other PBX-like communications
equipment.
Figure C-6 AC15 Example
AC15 is implemented as a single tone, 2280 hertz system that operates in three states:
1) Continuous Tone-On, 2) Pulsed Tone, or 3) Continuous Tone Off.
Link
SDM-FP
VFC03
SDM-FP 2-Wire Xmit
SDM-FP 2-Wire Rcv
PBX