User manual

Chapter 3. Operation

3-4 E&M+ Dual Voice Option ModuleUser Manual 61200105L3-1A

E-Lead

The presence of an asterisk indicates the E-L

EAD is being grounded

and the R

X A signal bit is equal to 1.

M-Lead

With Type I and II interfaces, the presence of an asterisk indicates

that -48 volts are applied to the M-L

EAD by the premises equip-

ment. With a Type V interface, the presence of an asterisk indicates

the M-L

EAD is grounded by the premises equipment.

View Signaling Bits (VIEW SIG BITS)

IEW SIG BITS displays the status of the Rx and Tx signaling bits

in the DS-1 stream. Figure 3-4 shows the status of both the A and

B bits.

Figure 3-4. View Signaling Bits Display

Port Configuration (Port Config)

PORT CONFIGURATION, a submenu of the TSU 100/120/600 menu

ONFIGURATION, is used to configure the E&M+ voice module.

The following submenu items configure the module:

•MODE

• RX LVL (TLP)

• TX LVL (TLP)

• FAULT RESP

• 2713 HZ TONE DET

RXA

0 0 1

RXB TXA TXB