User's Manual

Firmware Version 1.0.0.5
UCM6510 IP PBX User Manual
Page 77 of 192
The following dialog shows the digital port configuration parameters. Click on "Show Advanced Options" to
view more options.
Table 25: Ports Config/Digital Hardware: Edit Digital Ports
Span Type
Select the digital channel mode "E1", "T1" or "J1" (J1 is TBD).
Clock
All T1/E1 spans generate a clock signal on their transmit side. The
parameter determines whether the clock signal from the far end of the
T1/E1 is used as the master source of clock timing. If the far end is used
as the master, the PBX system clock will synchronize to it.
 Master: The port will never be used as a source of timing. This is
appropriate when you know the far end should always be a slave to
you.
 Slave: The equipment at the far end of the E1/T1 link is the preferred
source of the master clock.
Signaling
If the far end is set to "PRI_NET", this option should be set to
"PRI_CPE" on the UCM6510.
LBO
The line build-out (LBO) is the distance between the operators and the
PBX. Please use the default value 0dB unless the distance is long.
RX Gain
Configure the RX gain for the receiving channel of digital port. The valid
range is from -24dB to +12dB.
TX Gain
Configure the TX Gain for the transmitting channel of digital port. The
valid range is -24dB to +12dB.
Codec
Select alaw (PCMA) or ulaw (PCMU). The default code is alaw for E1
and ulaw for T1.
Advanced Options
Switch Type
Select switch type.
 euroisdn: EuroISDN (common in Europe)
 national: National ISDN type 2 (common in the US)
 dms100: Nortel DMS100
 4ess: AT&T 4ESS
 5ess: Lucent 5ESS
 ni1: old national ISDN type 1
 qsig: Q.SIG
Coding
For T1, select "ami" or "b8zs"; for E1, select "ami" or "hdb3".
CRC
For E1, select whether to use CRC4 or CRC6. For J1 (pending), CRC6