Verilink 300 (34-00199) Product Manual - Manual (Page 5)

5 12
Specifications
Network Interface
Line Rate: 1.544 Mbps (± 50 bps)
Line Framing: D4 or ESF
Line Code: AMI or B8ZS
Line Impedance: balanced 100
Ω
(± 5%)
Input Signal: DS1, +1 to -27 dB (ALBO)
Output Signal: 3.0 V (±15%) base-peak into 100
Ω
Line Build Out: 0, -7.5, -15, and -22.5 dB attenuation
Line Protection: 1000 V lightning, input/output
Jitter Control: per TR62411 and T1.403
Pulse Density: per TR62411
V.35 Interface
Data Rate: Synchronous, N x 56 or N x 64 kbps
Clocking: Internal or external
Industry Standards
FCC: Part 15 Subpart B, Class A
UL 1459 2 nd Edition
CSA: C22.2 No. 225-M90
IC: CSO3 Issue 8
ANSI T1.403: 1989 (300 only)
TR54016: September 1989 (300 only)
TR62411: December 1990
TR54019A: April 1988
Power
AC Power: 115 VAC (± 10%), 150 mA max, 20 Watts, 73 BTU max.
Connection: 5-foot power cord
Mechanical
Mounting: Desktop, wall, or vertical rack
Dimensions: 1.75 inches (4.45 cm) high, 6.8 inches (17.27 cm) wide, 10.5
inches (26.67 cm) deep
Weight: 2 pounds (0.91 kg)
Environmental
Operating Temp: 32° to 122°F (0° to 50° C)
Storage Temp: -4° to 185°F (-20° to 85° C)
Humidity: 95% max (non-condensing)
unit generates a PRM (performance report message) once every second and responds to
T1.403 messages only.
A - ESF B - D4
Network Coding: Position S2-5 sets the network line code format. With AMI coding,
each unit converts data to the AMI format from the DTE port towards the network. In-
coming AMI data is converted internally to NRZ data and passed to the DTE port. In
the B8ZS mode, the unit substitutes any 8-zero data with a B8ZS code and transmits it
towards the network. B8ZS data from the network is converted to NRZ data internally.
When the unit is operating ‘clear channel’, it can be configured to B8ZS for ones den-
sity control.
A - AMI B - B8ZS
Network LBO: Positions S2-6 and S2-7 set the network line build out signal level of
data transmitted towards the T1 facility. The output level is factory set at 0 dB. It may
be attenuated by - 7.5 dB, -15 dB, or -22.5 dB if operating conditions require the
change (refer to the Switch S2 diagram for switch settings). The telco should provide
the proper setting to the user. If unsure of the exact setting, then let it remain at 0 dB.
Connections
The model 300 and 310 rear panels have two interface connectors - an RJ-48C network
interface connector and a V.35 high speed port connector. The following paragraphs ex-
plain the network and V.35 connections. Each unit comes equipped with a power cord
for 115 VAC (±10%) operation.
V.35 Port Connection
The V.35 port meets all the general physical and electrical requirements. It supports
TM and auto clock scan. The V.35 pin assignments are as follows.
Circuit Pin # Signal Name DCE
101 A Frame Ground Ground
102 B Signal Ground Ground
103 P /S Transmit Data In
104 R /T Receive Data Out
105 C Request To Send In
106 D Clear To Send Out
107 E Data Set Ready Out
109 F Data Carrier Detect Out
113 U /W External Transmit Clock In
114 Y /AA Transmit Clock Out
115 V /X Receive Clock Out
142 K Test Mode Out