25-Seven Program Delay Manager
Version 2.3 Manual April 2013 51
PDM output. Other setups may be appropriate if you’re using routing switchers or an
automation system.
Axia Livewire versions of PDM appear as a normal Source and Destination within Axia’s
setup screens. See the Livewire setup section in this manual for more information.
If your station uses Arbitron PPM, place your PDM unit
before
their encoder in the sig-
nal path. This will ensure PPM encoding is not affected when audio is dumped, or
when delays are being built or exited.
Rear Panel
Power Input
Standard IEC configuration self-adapts to any voltage between 100 – 240 volts AC, 50 or
60 Hz.
Ethernet / Livewire
Connect to a standard 10/100Base-T network connection. All PDM models use this port
for remote control via web browser, PD-Alerts, serial remote control over IP, and syn-
chronization to a network time server. If connected to the Internet, it should be behind
a hardware firewall or on a VPN.
In additional, Axia-Livewire equipped models use this port for Livewire audio input and
output. Livewire operation requires special software; Contact 25-Seven or your dealer
for upgrade details.
Digital Input
When set to AES/EBU via the
Audio
menu, this input conforms to IEC 958 Professional
(5v p-p, 110
balanced) on XLR connectors.
When set to s/pdif, the voltage and impedance switches to IEC 958 Consumer (.5v p-p,
75
unbalanced): connect signal to pin 2 and shield to pins 1 and 3.
Warning:
XLR-equipped PDMs will lock to any valid 44.1 kHz, or 48 kHz signal at
this connector, even if you’ve selected
analog
for the audio input. This lets you
keep the digital output compatible with other equipment. But because of this fea-
ture, both the analog and digital outputs can be disrupted if PDM sees an intermit-
tent or weak digital input signal.
Do not connect, remove, or change a digital input
signal while PDM is on the air.
Summary of Contents for program delay manager
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