Specifications
Ethernet and Fibre Channel Application
463
Synchronization Interfaces
Synchronization Interfaces
For IQS-8510G:
For IQS-8120NGE/IQS-8130NGE and IQS-8525/IQS-8535:
SYNCHRONIZATION INTERFACES
DS1/E1 external input clock interface
Parameter
DS1
E1
Rx level sensitivity (short haul only)
For 772 kHz:
For 1024 kHz:
TERM: 6 dB (cable loss only)
TERM: 6 dB (cable loss only)
Reception bit rate
1.544 Mbit/s ± 50 ppm
2.048 Mbit/s ± 50 ppm
Input jitter tolerance
AT&T PUB 62411, GR-499 section 7.3
G.823 section 7.2
Line coding
AMI and B8ZS
HDB3 and AMI
Input impedance
100 ohms ± 5%, balanced
120 ohms ± 5%, balanced
(resistive termination)
Connector type
BANTAM
BANTAM
Clock out interface
Parameter
Value
Tx pulse amplitude
600 mVpp ± 130 mV
Transmission frequency
LAN
WAN
Clock divider = 16
644.53 MHz
622.08 MHz
Clock divider = 32
322.266 MHz
311.04 MHz
Clock divider = 64
161.133 MHz
155.52 MHz
Output configuration
AC coupled
Load impedance
50 ohms
Maximum cable length
3 meters
Connector type
SMA
E
x
te
rnal
C
l
oc
k
DS
1/1
.5M
E
x
te
rnal
C
l
oc
k
E
1/
2M
E
x
te
rnal
C
l
oc
k
E
1/
2M
Tri
gge
r
2 MHz
Tx Pulse Amplitude
2.4 to 3.6 V
3.0 V
2.37 V
0.75 to 1.5 V
Tx Pulse Mask
GR-499 figure 9.5
G.703 figure 15
G.703 figure 15
G.703 figure 20
Typical power dBdsx
+0.6 dBdsx (0-133 ft)
Tx LBO
+1.2 dBdsx (133-266 ft)
Preamplification
+1.8 dBdsx (266-399 ft)
+2.4 dBdsx (399-533 ft)
+3.0 dBdsx (533-655 ft)
Rx Level
TERM:
≤
6 dB (cable loss only)
TERM: =
≤
6 dB (cable loss only)
TERM: =
≤
6 dB (cable loss only)
≤
6 dB (cable loss only)
Sensivity
(at 772 kHz for T1) DSX-MON:
MON:
≤
26 dB (20 dB resistive loss
MON:
≤
26 dB (resistive loss
≤
26 dB (20 dB resistive loss
+ cable loss
≤
6 dB)
+ cable loss
≤
6 dB)
+ cable loss
≤
6 dB)
Bridge:
≤
6 dB (cable loss only)
Bridge:
≤
6 dB (cable loss only)
Bridge:
≤
6 dB (cable loss only)
Transmission Bit Rate 1.544 Mbit/s ± 4.6 ppm
2.048 Mbit/s ± 4.6 ppm
2.048 Mbit/s ± 4.6 ppm
Reception Bit Rate
1.544 Mbit/s ± 50 ppm
2.048 Mbit/s ± 50 ppm
2.048 Mbit/s ± 50 ppm
Intrinsic Jitter (Tx)
ANSI T1.403 section 6.3
G.823
G.823
G.703
GR-499 section 7.3
section 6.1
section 6.1
table 11
Input Jitter
AT&T PUB 62411
G.823 section 7.2
G.823 section 7.2
Tolerance
GR-499 SECTION 7.3
G.813
G.813
Line Coding
AMI and B8ZS
AMI and HDB3
AMI and HDB3
Input Impedance
75 ohms ± 5%,
75 ohms ± 5%,
75 ohms ± 5%,
75 ohms ± 5%,
(Resistive Termination) unbalanced
unbalanced
unbalanced
unbalanced
Connector Type
BNC
a
BNC
a
BNC
BNC
N
O
T
ES
a. Adaptation cable required for BANTAM.
S
YN
C
HR
O
NI
S
ATI
O
N INT
E
RFA
CES
