Telos NX12 User Manual download pdf (Page 58)

48 | Section 5

Input Setting Related to Input Level

Input Setting -10dBV 0dBu +4dBu +9dBu PPM -9dBfs PPM

Analog input level - 10 dBV nom 0 dBu nom +4 dBu nom +9 dBu PML n/a

Livewire/AES - 32 dBfs nom -24 dBfs nom -20 dBfs nom -15 dBfs -9 dBfs PML

e ballistic (time) characteristic of Nx12’s meters changes depending on the Input Level set-

ting so to match the expected console meter type. When -10, 0, or +4dBu is selected, the meter

has a VU-standard integration time. When +9dBu PPM or -9dBfs PPM are selected, the meter

has a PPM time characteristic.

e table above shows the level at the green/red transition on the NX12 meter. For VU, this is

the nominal 0 value; for PPM, this is the Permitted Maximum Level (PML) value.

e usual setting is +4dBu. e +9dBu PPM setting is intended for Euro analog installations.

e -9dBfs setting is intended for Euro digital installations.

If Livewire inputs are used, this should usually be set to +4dBu for the -20dBfs Livewire

standard nominal level. Europeans could choose the -9dBfs PPM setting if they are operating

their Livewire network according to this standard.

Nominal Output Level

is adjusts the level of analog, AES, and Livewire outputs.

Output Setting Related to Output Level

Output Gain Setting -10dBV 0dBu +4dBu +9dBu PPM -9dBfs PPM

Analog output level - 10 dBV nom 0 dBu nom +4 dBu nom +9 dBu PML n/a

Livewire/AES - 32 dBfs nom -24 dBfs nom -20 dBfs nom -15 dBfs -9 dBfs PML

Meter Mode

Selects the audio that will be indicated on the LED meters.

4 Studio Out

♦ – Each studio output goes to a meter, from the top down

4 Studio In –

♦ Each studio input has a meter, from the top down

POH in –

♦ e two Program on Hold inputs go to the top meters

Phone 3&4 –

♦ Send and receive to/from hybrids 3 & 4

Phone 1&2 –

♦ Send and receive to/from hybrids 1 & 2

Studio 3&4

♦ – Input from and output to studios 3 & 4

Studio 1&2 (default)

♦ – Input from and output to studios 1 & 2 (the meter markings

correspond to this one)

Phone Send Adjustment

is setting adjusts the level of the hybrid into the telephone line, after the send limiter and is

calibrated with 0dB representing the usual send level into the line.

e default is 0dB, which should be OK for most telephone lines. If callers consistently com-

plain about low audio level and you have veriﬁed that this is a problem, you can increase the

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Telos NX12 User Manual Page 58

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