User manual

61200105L3-1A E&M+ Dual Voice Option Module User Manual 1-1
Chapter 1 Introduction
E&M+ DUAL VOICE OVERVIEW
The E&M+ Dual Voice option module (“the E&M+ voice module”)
is one of the option modules available for ADTRAN’s TSU
100/120/600 (“the TSU”). The E&M+ voice module (P/N
1200105L3) provides two voice-grade interfaces, either 2-wire
(2W) or 4-wire (4W). These interfaces serve as tie-trunks using
E&M signaling or as dedicated transmission only (TO) interfaces
for additional data services.
The E&M+ voice module accepts the E&M+ plug-on board as well
as other plug-on modules. The E&M+ plug-on board provides up to
four functional ports per option slot. (In addition, the E&M+ plug-
on board may be plugged onto any existing TSU option module.)
The E&M+ voice module and E&M+ plug-on board are compatible
with the following E&M interface types: Type I, Type II, and Type
V (same premises wiring). The E-lead originates on these interface
types, while the M-lead originates on interfaces typically found on
PBXs and switching equipment.
Select the E&M signaling type using the jumper located near the
rear panel of the TSU. Placing the jumper across Pins 1 and 2,
enables Type I and Type II E&M signaling. Placing the jumper
across Pins 2 and 3, enables Type V E&M signaling. (Appendix C,
Signaling States, on page C-1 provides additional information.)
• The J1 JUMPER is located on the E&M+ plug-on board
(P/N 1200106L3) directly to the right of the ADTRAN logo.
• The J2
JUMPER is located on the E&M+ voice module
board, (P/N 1200105L3) near the rear panel directly to the
right of the ADTRAN logo.