T1 Interface
Number of links: 2
Compliance: ITU Rec. G.703, G.704; AT&T
TR-62411, TR-54019, PUB 54016
Data rate: 1.544 Mbps
Line code: AMI or B8ZS
Receive level:
0 to -34dB/with CSU
0 to -10dB/without CSU
Transmit level:
0 dB, -7.5dB, -15dB/with CSU
3V ( �} 10%) soft-adjustable to be measured at 0 to 655 ft
with or without CSU
Impedance: 100 . , balanced
Framing: D4 or ESF
Connector: RJ-48C, 8-pin
E1 Port
Compliance: ITU Rec. G.703, G.704, G.823
Data rate: 2.048 Mbps
Line code: HDB3
Framing: any E1 frame
Impedance:
120 . , balanced
75 . , unbalanced
Signal level:
Receive level: 0 to -10 dB
Transmit pulse:
Balanced: �} 3V ( �} 10%)
Unbalanced: �} 2.37V ( �} 10%)
Connectors:
8-pin RJ-45 for balanced
Two BNC coaxial for unbalanced
.
Data Port
Data rate: n x 128 kbps (where n=1...7), up to
896 kbps
Interfaces and connectors:
V.35 with 34-pin connector
RS-530 with 25-pin connector
V.36/RS-449 with 37-pin connector (using RS-530 port, via
supplied conversion cable)
X.21 with 15-pin connector
Ethernet 10BaseT with shielded 8-pin RJ-45
connector
Timing:
DCE or External DCE, user-selectable
Fractional T1 Port
Compliance:
AT&T TR-62411, ITU Rec. G.703, G.704
Data rate: n x 128 kbps (where n=1...7), up to
896 kbps
Line code: AMI
Receive level: 0 to -10 dB
Transmit level:
3V ( �} 10%) soft-adjustable to be measured at
0 to 655 ft
Framing: D4 (SF) or ESF
Impedance: 100 . , balanced
Connector: RJ-48C, 8-pin
Control Signals
CTS Follows RTS or constantly ON, soft
selectable
DSR Constantly ON unless in test mode
DCO Constantly ON unless in red alarm
GENERAL
Compliance
AT&T TR-54019
Timing
Loopback timing: Link 1 or 2
Internal timing: ( �} 32 ppm)
Station Clock timing
External E1 timing
Transparent timing
External fractional T1
Station Clock Interface
Bit rate: 1.544 Mbps
Line code: AMI/B8ZS
Impedance: 100 .
Pulse shape: ITU G.703
Connector: RJ-48C, 8-pin
Format:
framed/unframed "all ones"
T1 Differential Delay
Up to 64 msec
Diagnostics
Local/remote E1 loopback
Local/remote T1 loopback
Local/remote fractional T1 or data port loopback
Inband code activated loopback per data port
or fractional T1 according to ANSI FT1 RDL (T1E1-2/93-003)
BERT V.52, built-in
Code activated network loopback per AT&T
62411 (ANSI T1.403)
Statistics and Alarms
Full statistical diagnostics
ANSI T1.403-1989
Local support of ESF diagnostics according to
AT&T PUB 54016
Alarm buffer size: 100 events
Alarm Response
Received impairment on T1
T1 response: Yellow Alarm
E1 response: AIS signal
Receive unframed "all ones" on E1
T1 response: none
E1 response: Alarm
Supervisory Port
Interface: V.24/RS-232, async
Connector: 9-pin D-type, female
Speed: 0.3 - 9.6 kbps, autobaud
Front Panel Controls
LCD (2 rows x 16 characters)
Push-buttons (Cursor, Scroll, Enter)
Indicators
T1 (per link): Red and Yellow alarms
E1 port: RD, TD
Data port: DCD, RTS, RD, TD, TEST
Physical
Height: 4.4 cm / 1.7 in (1U)
Width: 43.2 cm / 17.0 in
Depth: 24.2 cm / 9.5 in
Weight: 2.3 kg / 5.0 lb
.
Power Supply
115/230 VAC
-48 VDC; 18.5W
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